The U.S. government reports the rate of inflation (as measured by th.pdf
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The U.S. government is the world’s largest borrower and currently enjoys a high-rating for its low default risk. Explain how receiving a lower bond-rating may affect the U.S. government. Solution The interest rate is determined by the Bond’s rating. For a high rated bond, borrower has to pay lower interest and for a low rated bond, borrower has to pay higher interest. If the US government bond rating reduces, they will have to pay higher interest on bonds. As a result of higher cash outflow for interest, US government will be able to borrow lower amount of money. Interest rates in US will increase and this will impact the economic activities..
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The up - and - down component of a time series that represents p.pdf
The unknown value of A from the cash flows in table below is _________________.
i= 6% per year
Year
0
1
2
3
4
5
Cash Flow
-$5,000
4A
3A
2A
A
5A
Select one:
a. $395.21
b. $274.80
c. $349.97
d. $434.63
For the cash flows provided in the table below, determine the unknown value “A”. Use an
interest rate of 7%.
Year
0
1
2
3
4
5
Cash flow
12,000
-A
-2A
-3A
-4A
-6A
Select one:
a. $973.60
b. $ 846.04
c. $791.80
d. $654.56
Given the cash flows in table below, determine the rate of return.
Year
0
1
2
3
4
Cash Flow
$10K
$0
$5K
$0
$10K
Select one:
a. 100%
b. 11.2%
c. Cannot determine
d. 8.91%
Year
0
1
2
3
4
5
Cash Flow
-$5,000
4A
3A
2A
A
5A
Solution
1.
Correct Answer:
Explanation:
Here interest rate in question is the IRR.
At I = 6%
And
A = 395.21 (taken from the answer choice)
Present value of cash inflows = CF1/1.06 + CF2/1.06^2 + CF3/1.06^3 + CF4/1.06^4 +
CF4/1.06^5
Present value of cash inflows = 1580.84/1.06 + 1185.63/1.06^2 + 790.42/1.06^3 + 395.21/1.06^4
+ 1976.05/1.06^5
Present value of cash inflows = $4999.88 or $5000 approx.
2.
2.
Correct Answer:
Explanation:
At this amount only , NPV is negative
PV of negative cash flows = -(CF1/1.07 + CF2/1.07^2 + CF3/1.07^3 + CF4/1.07^4 +
CF5/1.07^5)
At A = 973.60
PV of negative cash flows = - (973.6/1.07 + 1947.2/1.07^2 + 2920.8/1.07^3 + 3894.4/1.07^4 +
5841.6/1.07^5) = -12130.91
NPV =12000 – 12130.91 = -130.91
At other values NPV will be positive.
Note:
Pl. repost other unanswered questions to get their proper answers..
The University of Michigan Health and Retirement Study(HRS)surveys m.pdf
The University of Iowa would like to advertise that its incoming first-year students had an
average high school GPA 3.6 or higher. We sample 200 first-year students and calculate an
average GPA of 3.7. Suppose that H0: Average GPA is 3.6 or lower. Can the UI make this
claim?
Solution
Yes, the UI make this claim since 3.7 is larger than 3.6.
The United States is a net exporter of services to China. What does .pdf
the united states has fought three major wars in modern times: world war 2 the korean war and
the vietnam war. if you sum the years that each conflict ended the result is 5871. The vietnam
war ended 20 years after the korean war and 28 years after world war 2 in what year did each
end?
Solution
let three war years be a,b, c
now, a+b+c= 5871
c= b+20 and c=a+28
then, c-20+c-28+c=5871
3c=5919
c=1973
so, three war years are : 1973, 1953, 1945.
The United States Stock Market is virtually at the same position tod.pdf
The United States Senate contains two senators form each of the 50 states. (a) If a committee of
eight senators is selected at random, what is the probability that it will contain at least one of the
two senators from a certain specified state? (b) What is the probability that a group of 50
senators selected at random will contain one senator from each state?
Solution
a) p = 2 C1 * 98 C 7 / 100 C 8 b) p = 2^50/ 100 C 50 =.
The unit impulse function is not physically realizable. In fact, it .pdf
The Uniqe Shoppe sells personalized telephones. Its weekly cost function is C(x)=28x+650. At
the break=even point, x=65 phones per week. What is the revenue function?
Solution
The Uniqe Shoppe sells personalized telephones. Its weekly cost function is C(x)=28x+650. At
the break=even point, x=65 phones per week. What is the revenue function?
AT BREAK EVEN
COST=REVENUE
COST = 28X+650
REVENUE=S*X
WHERE
S=SALE PRICE PER UNIT
X= NO. SOLD.=65
SO WE GET
S*65=28*65+650
S=38
HENCE THE REVENUE FUNCTION IS
R=38X..............ANSWER.
The U.S. Federal government has been running deficits in the hundred.pdf
The U.S. Environmental Protection Agency publishes figures on solid waste generated in the
U.S. Suppose that during a year, the daily amount of solid waste generated per person was
normally distributed with a mean of 3.58 pounds and a standard deviation of 1.04 pounds.
c) At least how much a person must be producing to be in the top 10% of solid waste producers?
Solution
(X - mean)/ = 1.28
(X-3.58)/1.04 = 1.28
X = 1.28 * 1.04 + 3.58 = 4.9112 pounds daily.
The Two Sisters has a 17 percent return on equity and a 31 percent r.pdf
The two planes are perpendicular. Find the value of k.
P1: x - y + 2z - 5 = 0
P2: 3x - 2y +kz + 1 = 0
Solution
Since the planes are perpendicular, it means that the normals of the planes are also perpendicular.
This means that the dot product of the normals must vanish.
From the first plane, the normal is [(1, -1, 2)] .
From the second plane, the normal is [(3, -2, k)] .
Since the dot product vanishes, we get:
[(1, -1, 2)\\cdot(3, -2, k)=0]
[3+2+2k=0]
[2k=-5]
This means that [k=-5/2] ..
The trial balance of Watteau Co. does not balance.WATTEAU CO. .pdf
The trial balance of the Wall Fashion Center, Inc. contained the following accounts at December
31, 2007 the end of the company’s calendar year.
WALL FASHION CENTER, INC.
Trial Balance
31-Dec-07
Debit
Credit
Cash
$ 16,700
Accounts Receivable
33,700
Merchandise Inventory (Beginning)
38,000
Store Supplies
5,500
Store Equipment
85,000
Accumulated Depreciation-Store Equipment
$ 18,000
Delivery Equipment
48,000
Accumulated Depreciation-Delivery Equipment
6,000
Notes Payable
51,000
Accounts Payable
48,500
Common Stock
80,000
Retained Earnings
30,000
Dividends
12,000
Sales
746,600
Sales Returns and Allowances
4,200
Purchases
503,600
Purchase Returns and Allowances
6,900
Purchase Discounts
3,700
Freight-in
10,800
Salaries Expense
140,000
Advertising Expense
26,400
Utilities Expense
17,000
Repair Expense
9,100
Delivery Expense
16,700
Rent Expense
24,000
$ 990,700
$ 990,700
Adjustment data:
Store supplies on hand totaled $3,500.
Depreciation is $9,000 on the store equipment and $7,000 on the delivery equipment.
Interest of $11,000 is accrued on notes payable at December 31.
Other data:
Merchandise inventory on hand at December 31, 2007 is $45,000.
Salaries expense is 70% selling and 30% administrative.
Rent expense and utilities expense are 80% selling and 20% administrative.
$30,000 of notes payable are due for payment next year.
Repair expense is 100% administrative.
The beginning balance of accounts receivable is $31,250.
The amount of total assets at the beginning of the year is $199,700.
Instructions
1)Journalize the adjusting entries.
2)Prepare a multiple-step income statement and a retained earnings statement for the year and a
classified balance sheet as of December 31, 2007.
3)Journalize the closing entries.
4)Prepare a post-closing trial balance.
5)Prepare the following ratios and show all support for your computations:
a) Current Ratio
b) Quick Ratio
c) Working Capital
d) Accounts Receivable Turnover
e) Average Collection Period
f) Inventory Turnover
g) Days in Inventory
h) Debt to Total Assets Ratio
i) Gross Profit Ratio
j) Profit Margin Ratio
k) Return on Assets Ratio
l) Asset Turnover Ratio
6) Based on the ratios computed in 5 above, answer the following questions and use the financial
statement ratios to support your answers where appropriate:
Do you feel that the company is able to meet its current and long term obligations as they
become due?
Comment on the profitability of the company with respect to the various profitability ratios that
you computed.
Would you lend money to this company for the long term?
Comment on the ability of the company to collect its receivables and mange inventory.
2004
2005
2006
Industry Average
Liquidity
Current
1.09
1.30
1.80
1.42
Quick
0.89
1.08
1.28
1.10
Working Capital
$ 10,000.00
$ 13,500.00
$ 18,000.00
$ 20,000.00
Leverage
Debt to Total Assets (%)
52.03%
48.52%
43.61%
40.00%
Times Interest Earned
1.50
3.50
4.75
5.00
Activity
Inventory Turnover (sales)
12.56
13.85
14.02
19.98
Fixed Asset Turnover
9.50
.
Recommended
The up - and - down component of a time series that represents p.pdf
The unknown value of A from the cash flows in table below is _________________.
i= 6% per year
Year
0
1
2
3
4
5
Cash Flow
-$5,000
4A
3A
2A
A
5A
Select one:
a. $395.21
b. $274.80
c. $349.97
d. $434.63
For the cash flows provided in the table below, determine the unknown value “A”. Use an
interest rate of 7%.
Year
0
1
2
3
4
5
Cash flow
12,000
-A
-2A
-3A
-4A
-6A
Select one:
a. $973.60
b. $ 846.04
c. $791.80
d. $654.56
Given the cash flows in table below, determine the rate of return.
Year
0
1
2
3
4
Cash Flow
$10K
$0
$5K
$0
$10K
Select one:
a. 100%
b. 11.2%
c. Cannot determine
d. 8.91%
Year
0
1
2
3
4
5
Cash Flow
-$5,000
4A
3A
2A
A
5A
Solution
1.
Correct Answer:
Explanation:
Here interest rate in question is the IRR.
At I = 6%
And
A = 395.21 (taken from the answer choice)
Present value of cash inflows = CF1/1.06 + CF2/1.06^2 + CF3/1.06^3 + CF4/1.06^4 +
CF4/1.06^5
Present value of cash inflows = 1580.84/1.06 + 1185.63/1.06^2 + 790.42/1.06^3 + 395.21/1.06^4
+ 1976.05/1.06^5
Present value of cash inflows = $4999.88 or $5000 approx.
2.
2.
Correct Answer:
Explanation:
At this amount only , NPV is negative
PV of negative cash flows = -(CF1/1.07 + CF2/1.07^2 + CF3/1.07^3 + CF4/1.07^4 +
CF5/1.07^5)
At A = 973.60
PV of negative cash flows = - (973.6/1.07 + 1947.2/1.07^2 + 2920.8/1.07^3 + 3894.4/1.07^4 +
5841.6/1.07^5) = -12130.91
NPV =12000 – 12130.91 = -130.91
At other values NPV will be positive.
Note:
Pl. repost other unanswered questions to get their proper answers..
The University of Michigan Health and Retirement Study(HRS)surveys m.pdf
The University of Iowa would like to advertise that its incoming first-year students had an
average high school GPA 3.6 or higher. We sample 200 first-year students and calculate an
average GPA of 3.7. Suppose that H0: Average GPA is 3.6 or lower. Can the UI make this
claim?
Solution
Yes, the UI make this claim since 3.7 is larger than 3.6.
The United States is a net exporter of services to China. What does .pdf
the united states has fought three major wars in modern times: world war 2 the korean war and
the vietnam war. if you sum the years that each conflict ended the result is 5871. The vietnam
war ended 20 years after the korean war and 28 years after world war 2 in what year did each
end?
Solution
let three war years be a,b, c
now, a+b+c= 5871
c= b+20 and c=a+28
then, c-20+c-28+c=5871
3c=5919
c=1973
so, three war years are : 1973, 1953, 1945.
The United States Stock Market is virtually at the same position tod.pdf
The United States Senate contains two senators form each of the 50 states. (a) If a committee of
eight senators is selected at random, what is the probability that it will contain at least one of the
two senators from a certain specified state? (b) What is the probability that a group of 50
senators selected at random will contain one senator from each state?
Solution
a) p = 2 C1 * 98 C 7 / 100 C 8 b) p = 2^50/ 100 C 50 =.
The unit impulse function is not physically realizable. In fact, it .pdf
The Uniqe Shoppe sells personalized telephones. Its weekly cost function is C(x)=28x+650. At
the break=even point, x=65 phones per week. What is the revenue function?
Solution
The Uniqe Shoppe sells personalized telephones. Its weekly cost function is C(x)=28x+650. At
the break=even point, x=65 phones per week. What is the revenue function?
AT BREAK EVEN
COST=REVENUE
COST = 28X+650
REVENUE=S*X
WHERE
S=SALE PRICE PER UNIT
X= NO. SOLD.=65
SO WE GET
S*65=28*65+650
S=38
HENCE THE REVENUE FUNCTION IS
R=38X..............ANSWER.
The U.S. Federal government has been running deficits in the hundred.pdf
The U.S. Environmental Protection Agency publishes figures on solid waste generated in the
U.S. Suppose that during a year, the daily amount of solid waste generated per person was
normally distributed with a mean of 3.58 pounds and a standard deviation of 1.04 pounds.
c) At least how much a person must be producing to be in the top 10% of solid waste producers?
Solution
(X - mean)/ = 1.28
(X-3.58)/1.04 = 1.28
X = 1.28 * 1.04 + 3.58 = 4.9112 pounds daily.
The Two Sisters has a 17 percent return on equity and a 31 percent r.pdf
The two planes are perpendicular. Find the value of k.
P1: x - y + 2z - 5 = 0
P2: 3x - 2y +kz + 1 = 0
Solution
Since the planes are perpendicular, it means that the normals of the planes are also perpendicular.
This means that the dot product of the normals must vanish.
From the first plane, the normal is [(1, -1, 2)] .
From the second plane, the normal is [(3, -2, k)] .
Since the dot product vanishes, we get:
[(1, -1, 2)\\cdot(3, -2, k)=0]
[3+2+2k=0]
[2k=-5]
This means that [k=-5/2] ..
The trial balance of Watteau Co. does not balance.WATTEAU CO. .pdf
The trial balance of the Wall Fashion Center, Inc. contained the following accounts at December
31, 2007 the end of the company’s calendar year.
WALL FASHION CENTER, INC.
Trial Balance
31-Dec-07
Debit
Credit
Cash
$ 16,700
Accounts Receivable
33,700
Merchandise Inventory (Beginning)
38,000
Store Supplies
5,500
Store Equipment
85,000
Accumulated Depreciation-Store Equipment
$ 18,000
Delivery Equipment
48,000
Accumulated Depreciation-Delivery Equipment
6,000
Notes Payable
51,000
Accounts Payable
48,500
Common Stock
80,000
Retained Earnings
30,000
Dividends
12,000
Sales
746,600
Sales Returns and Allowances
4,200
Purchases
503,600
Purchase Returns and Allowances
6,900
Purchase Discounts
3,700
Freight-in
10,800
Salaries Expense
140,000
Advertising Expense
26,400
Utilities Expense
17,000
Repair Expense
9,100
Delivery Expense
16,700
Rent Expense
24,000
$ 990,700
$ 990,700
Adjustment data:
Store supplies on hand totaled $3,500.
Depreciation is $9,000 on the store equipment and $7,000 on the delivery equipment.
Interest of $11,000 is accrued on notes payable at December 31.
Other data:
Merchandise inventory on hand at December 31, 2007 is $45,000.
Salaries expense is 70% selling and 30% administrative.
Rent expense and utilities expense are 80% selling and 20% administrative.
$30,000 of notes payable are due for payment next year.
Repair expense is 100% administrative.
The beginning balance of accounts receivable is $31,250.
The amount of total assets at the beginning of the year is $199,700.
Instructions
1)Journalize the adjusting entries.
2)Prepare a multiple-step income statement and a retained earnings statement for the year and a
classified balance sheet as of December 31, 2007.
3)Journalize the closing entries.
4)Prepare a post-closing trial balance.
5)Prepare the following ratios and show all support for your computations:
a) Current Ratio
b) Quick Ratio
c) Working Capital
d) Accounts Receivable Turnover
e) Average Collection Period
f) Inventory Turnover
g) Days in Inventory
h) Debt to Total Assets Ratio
i) Gross Profit Ratio
j) Profit Margin Ratio
k) Return on Assets Ratio
l) Asset Turnover Ratio
6) Based on the ratios computed in 5 above, answer the following questions and use the financial
statement ratios to support your answers where appropriate:
Do you feel that the company is able to meet its current and long term obligations as they
become due?
Comment on the profitability of the company with respect to the various profitability ratios that
you computed.
Would you lend money to this company for the long term?
Comment on the ability of the company to collect its receivables and mange inventory.
2004
2005
2006
Industry Average
Liquidity
Current
1.09
1.30
1.80
1.42
Quick
0.89
1.08
1.28
1.10
Working Capital
$ 10,000.00
$ 13,500.00
$ 18,000.00
$ 20,000.00
Leverage
Debt to Total Assets (%)
52.03%
48.52%
43.61%
40.00%
Times Interest Earned
1.50
3.50
4.75
5.00
Activity
Inventory Turnover (sales)
12.56
13.85
14.02
19.98
Fixed Asset Turnover
9.50
.
The Travel Time bus company has determined that when x tourists are .pdf
the trassh bag case
Solution
Tests show the trash bag has a mean breaking strength µ close to but not exceeding
50 lbs The null hypothesis H0 is that the new bag has a mean breaking strength that is 50 lbs or
less The new bag’s mean breaking strength is not known and is in question, but it is hoped it is
stronger than the current one The alternative hypothesis Ha is that the new bag has a mean
breaking strength that exceeds 50 lbs One-sided, “greater than” alternative H0: µ = 50 versusHa:
µ > 50 State the null and alternative hypotheses H0: ? ? 50Ha: ? > 50where µ is the mean
breaking strength of the new bag Specify the significance level ? ? = 0.05 Select the test statistic
Use the test statistic A positive value of this this test statistic results from a sample mean that is
greater than 50 lbs Which provides evidence against H0 in favor of Ha Determine the rejection
rule for deciding whether or not to reject H0 To decide how large the test statistic must be to
reject H0 by setting the probability of a Type I error to ?, do the following: The probability ? is
the area in the right-hand tail of the standard normal curve Use the normal table to find the point
z? (called the rejection or critical point) z? is the point under the standard normal curve that gives
a right-hand tail area equal to ? Since ? = 0.05 in the trash bag case, the rejection point is z? =
z0.05 = 1.645 Reject H0 in favor of Ha if the test statistic z is greater than the rejection point z?
This is the rejection rule In the trash bag case, the rejection rule is to reject H0 if the calculated
test statistic z is > 1.645 Collect the sample data and calculate the value of the test statistic In the
trash bag case, assume that s is known and s = n1.65 lbs For a sample of n = 40, x = 50.575 lbs.
Then Decide whether to reject H0 by using the test statistic and the rejection rule Compare the
value of the test statistic to the rejection point according to the rejection rule In the trash bag
case, z = 2.20 is greater than z0.05 = 1.645 Therefore reject H0: µ = 50 in favor of Ha: µ > 50 at
the 0.05 significance level Have rejected H0 by using a test that allows only a 5% chance of
wrongly rejecting H0 This result is “statistically significant” at the 0.05 level Interpret the
statistical results in managerial terms and assess their practical importance Can conclude that the
mean breaking strength of the new bag exceeds 50 lbs.
The transitive closure R^T of a relation R is the smallest set conta.pdf
The transition matrix of a Markov chain is:
[ .96 .04 ]
[ .27 .73 ]
If it starts in state 2, what is the probability that it will be in state 2 after 2 transitions?
Solution
The transition matrix is [P=([.96,.04],[.27,.73])] and we are asked to find the probability that if
we are in state 2 we are again in state 2 after 2 transitions.
The entries [p_(i,j)] are the probabilities of going from state i to state j. To find the probabilities
after m transitions we look at [P^m] .
[P^2=([.9324,.0676],[.4563,.5437])] .
The probability of starting in state 2 and ending in state 2 after 2 transitions is the entry [p_(2,2)]
in [P^2] which is .5437
-----------------------------------------------------------------
The probability is approximately .5437
---------------------------------------------------------------.
The Tourism Institute for the State of Florida plans to sample visit.pdf
The TOTOM Company sells one product with a variable cost of $5 per unit. The company is
unsure what price to charge in order to maximize profits. The price charged will also affect the
demand. If fixed costs are $100,000 and the following chart represents the demand at various
prices, what price should be charged in order to maximize profits?
Units Sold Price
30,000 $10
40,000 $9
50,000 $8
60,000 $7
A. $10
B. $9
C. $7
D. $8
Solution
B. $9.
The top-down budget development approach the budgetA. is impose.pdf
The top view of a revolving entrance door is shown. Two persons simultaneously approach the
door and exert force of equal magnitudes as shown. If the resulting moment about the door pivot
axis atOis 37 N magnitudes as shown. If the resulting moment about
Solution
2F cos 25 *1.2 = 37
F = 13.97 N.
The title says it all. Why did the Swiss National Bank end the curre.pdf
The Titanic Shipbuilding Company has a noncancelable contract to build a small cargo vessel.
Construction involves a cash outlay of $298,000 at the end of each of the next two years. At the
end of the third year the company will receive payment of $640,000. The company can speed up
construction by working an extra shift. In this case there will be a cash outlay of $630,000 at the
end of the first year followed by a cash payment of $640,000 at the end of the second year. Use
the IRR rule to calculate the (approximate) range of opportunity costs of capital at which the
company should work the extra shift. (Round your answers to 2 decimal places.)
The Titanic Shipbuilding Company has a noncancelable contract to build a small cargo vessel.
Construction involves a cash outlay of $298,000 at the end of each of the next two years. At the
end of the third year the company will receive payment of $640,000. The company can speed
up construction by working an extra shift. In this case there will be a cash outlay of $630,000 at
the end of the first year followed by a cash payment of $640,000 at the end of the second year.
Use the IRR rule to calculate the (approximate) range of opportunity costs of capital at which
the company should work the extra shift. (Round your answers to 2 decimal places.)
Solution
We have following cash flows:
C1
C2
C3
Current arrangement
(298,000)
(298,000)
640,000
Extra shift
(630,000)
640,000
-
Incremental flows
(332,000)
938,000
(640,000)
Using the IRR, function we get
IRR 1= 15.21%
IRR2= 67.32%
Therefore, capital cost would be in between 15.21% to 67.32%.
C1
C2
C3
Current arrangement
(298,000)
(298,000)
640,000
Extra shift
(630,000)
640,000
-
Incremental flows
(332,000)
938,000
(640,000).
The three essential pieces of information in the abstract section of.pdf
The three essential pieces of information in the abstract section of an informal document are
A. buffer, appeal, and background.
B. purpose, scope, and summary.
C. conclusion, recommendations, and next step.
D. ethos, pathos, and logos.
Solution
Ans ( B )
Purpose : for the report - why are you writing it ?
Scope : what range of information does the report contain ?
Summary : what main information does the reader most want or need to know..
The ThisInstructorIsSoNice Company expects to have net income of $18.pdf
The ThisInstructorIsSoNice Company expects to have net income of $18 million for the year,
and to pay out $3.5 million in dividends to common stockholders. There is no preferred stock.
What is the expected \"addition to retained earnings\" for the year?
Solution
The calculation is:
+ Beginning retained earnings Nil
+ Net income during the period $18.00
- Dividends paid (3.50)
= Ending retained earnings $14.5 million.
The time required for a customer service representative to field a h.pdf
The time required for a customer service representative to field a help desk question averages 4
minutes and is exponentially distributed.
What is the probability that the time exceeds 12 minutes? Please provide references. Thanks.
Solution
= 1/4
P = e-x = e-(1/4)*12 = 0.0498.
The terms of trade refers toWhat goods are exported.What goods .pdf
The terms of trade refers to:
What goods are exported.
What goods are imported.
The volume of trade.
The prices at which trade occurs.A
What goods are exported.B
What goods are imported.C
The volume of trade.D
The prices at which trade occurs.
Solution
Hi,
The correct answer is option (D), The prices at which trade occurs
Eplanation: Terms of trade (TOT) refers to the relative price of exports in terms of imports and is
defined as the ratio of export prices to import prices..
The term structure of interest rates is influenced byThe term st.pdf
The term structure of interest rates is influenced by
The term structure of interest rates is influenced by
Solution
Structure of interest rates changes daily to reflect current competitive conditions in the money
and capital market.
Interest rates are influenced by many factors such as :
1) inflation
2)Money Supply
3) Federal Reserve Activities.
The textbook (Engineering Materials - Properties and Selection) divi.pdf
The textbook (Engineering Materials - Properties and Selection) divides wear into 3 categories:
adhesion, abrasion, and surface fatigue. For each of these, list the type of wear found in each.
Solution
Wear :- Wear is a erosion of material from its derivative and orginal position on solid surface
performed by action of another surface
Different types of wears
1) Adhesive wear
2)Abrasion wear
3) Surface fatigue
1) Adhesive wears
These can be found between surfaces during fictional contact and generally refers to unwanted
displacement and attachment of wear debris from one surface to another
Generally adhesive wear occurs when slide over or pressed with each other , which promote
material transfer
ex - Sheet metal forming
2) Abrasion wear
Abrasion wear forms when one material slides over other surface . Abrasion differs from type of
contact
ex- Deep grove like surface over metal
3) Surface fatigue
This process is which surface of material is weakened by surfac loading . Which is a general
material fatigue .
Fatigue wear is produced by wear materials are detached by cyclic crack growth of micro cracks
of surface.
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Instagram:-
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https://chat.whatsapp.com/JVakNIYlSV94x7bwunO3Dc
YouTube:-
https://youtube.com/@special_education_needs
Teligram :- https://t.me/special_education_needs
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The Travel Time bus company has determined that when x tourists are .pdf
the trassh bag case
Solution
Tests show the trash bag has a mean breaking strength µ close to but not exceeding
50 lbs The null hypothesis H0 is that the new bag has a mean breaking strength that is 50 lbs or
less The new bag’s mean breaking strength is not known and is in question, but it is hoped it is
stronger than the current one The alternative hypothesis Ha is that the new bag has a mean
breaking strength that exceeds 50 lbs One-sided, “greater than” alternative H0: µ = 50 versusHa:
µ > 50 State the null and alternative hypotheses H0: ? ? 50Ha: ? > 50where µ is the mean
breaking strength of the new bag Specify the significance level ? ? = 0.05 Select the test statistic
Use the test statistic A positive value of this this test statistic results from a sample mean that is
greater than 50 lbs Which provides evidence against H0 in favor of Ha Determine the rejection
rule for deciding whether or not to reject H0 To decide how large the test statistic must be to
reject H0 by setting the probability of a Type I error to ?, do the following: The probability ? is
the area in the right-hand tail of the standard normal curve Use the normal table to find the point
z? (called the rejection or critical point) z? is the point under the standard normal curve that gives
a right-hand tail area equal to ? Since ? = 0.05 in the trash bag case, the rejection point is z? =
z0.05 = 1.645 Reject H0 in favor of Ha if the test statistic z is greater than the rejection point z?
This is the rejection rule In the trash bag case, the rejection rule is to reject H0 if the calculated
test statistic z is > 1.645 Collect the sample data and calculate the value of the test statistic In the
trash bag case, assume that s is known and s = n1.65 lbs For a sample of n = 40, x = 50.575 lbs.
Then Decide whether to reject H0 by using the test statistic and the rejection rule Compare the
value of the test statistic to the rejection point according to the rejection rule In the trash bag
case, z = 2.20 is greater than z0.05 = 1.645 Therefore reject H0: µ = 50 in favor of Ha: µ > 50 at
the 0.05 significance level Have rejected H0 by using a test that allows only a 5% chance of
wrongly rejecting H0 This result is “statistically significant” at the 0.05 level Interpret the
statistical results in managerial terms and assess their practical importance Can conclude that the
mean breaking strength of the new bag exceeds 50 lbs.
The transitive closure R^T of a relation R is the smallest set conta.pdf
The transition matrix of a Markov chain is:
[ .96 .04 ]
[ .27 .73 ]
If it starts in state 2, what is the probability that it will be in state 2 after 2 transitions?
Solution
The transition matrix is [P=([.96,.04],[.27,.73])] and we are asked to find the probability that if
we are in state 2 we are again in state 2 after 2 transitions.
The entries [p_(i,j)] are the probabilities of going from state i to state j. To find the probabilities
after m transitions we look at [P^m] .
[P^2=([.9324,.0676],[.4563,.5437])] .
The probability of starting in state 2 and ending in state 2 after 2 transitions is the entry [p_(2,2)]
in [P^2] which is .5437
-----------------------------------------------------------------
The probability is approximately .5437
---------------------------------------------------------------.
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The TOTOM Company sells one product with a variable cost of $5 per unit. The company is
unsure what price to charge in order to maximize profits. The price charged will also affect the
demand. If fixed costs are $100,000 and the following chart represents the demand at various
prices, what price should be charged in order to maximize profits?
Units Sold Price
30,000 $10
40,000 $9
50,000 $8
60,000 $7
A. $10
B. $9
C. $7
D. $8
Solution
B. $9.
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The top view of a revolving entrance door is shown. Two persons simultaneously approach the
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axis atOis 37 N magnitudes as shown. If the resulting moment about
Solution
2F cos 25 *1.2 = 37
F = 13.97 N.
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The Titanic Shipbuilding Company has a noncancelable contract to build a small cargo vessel.
Construction involves a cash outlay of $298,000 at the end of each of the next two years. At the
end of the third year the company will receive payment of $640,000. The company can speed up
construction by working an extra shift. In this case there will be a cash outlay of $630,000 at the
end of the first year followed by a cash payment of $640,000 at the end of the second year. Use
the IRR rule to calculate the (approximate) range of opportunity costs of capital at which the
company should work the extra shift. (Round your answers to 2 decimal places.)
The Titanic Shipbuilding Company has a noncancelable contract to build a small cargo vessel.
Construction involves a cash outlay of $298,000 at the end of each of the next two years. At the
end of the third year the company will receive payment of $640,000. The company can speed
up construction by working an extra shift. In this case there will be a cash outlay of $630,000 at
the end of the first year followed by a cash payment of $640,000 at the end of the second year.
Use the IRR rule to calculate the (approximate) range of opportunity costs of capital at which
the company should work the extra shift. (Round your answers to 2 decimal places.)
Solution
We have following cash flows:
C1
C2
C3
Current arrangement
(298,000)
(298,000)
640,000
Extra shift
(630,000)
640,000
-
Incremental flows
(332,000)
938,000
(640,000)
Using the IRR, function we get
IRR 1= 15.21%
IRR2= 67.32%
Therefore, capital cost would be in between 15.21% to 67.32%.
C1
C2
C3
Current arrangement
(298,000)
(298,000)
640,000
Extra shift
(630,000)
640,000
-
Incremental flows
(332,000)
938,000
(640,000).
The three essential pieces of information in the abstract section of.pdf
The three essential pieces of information in the abstract section of an informal document are
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B. purpose, scope, and summary.
C. conclusion, recommendations, and next step.
D. ethos, pathos, and logos.
Solution
Ans ( B )
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Scope : what range of information does the report contain ?
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The ThisInstructorIsSoNice Company expects to have net income of $18.pdf
The ThisInstructorIsSoNice Company expects to have net income of $18 million for the year,
and to pay out $3.5 million in dividends to common stockholders. There is no preferred stock.
What is the expected \"addition to retained earnings\" for the year?
Solution
The calculation is:
+ Beginning retained earnings Nil
+ Net income during the period $18.00
- Dividends paid (3.50)
= Ending retained earnings $14.5 million.
The time required for a customer service representative to field a h.pdf
The time required for a customer service representative to field a help desk question averages 4
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What is the probability that the time exceeds 12 minutes? Please provide references. Thanks.
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= 1/4
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The terms of trade refers toWhat goods are exported.What goods .pdf
The terms of trade refers to:
What goods are exported.
What goods are imported.
The volume of trade.
The prices at which trade occurs.A
What goods are exported.B
What goods are imported.C
The volume of trade.D
The prices at which trade occurs.
Solution
Hi,
The correct answer is option (D), The prices at which trade occurs
Eplanation: Terms of trade (TOT) refers to the relative price of exports in terms of imports and is
defined as the ratio of export prices to import prices..
The term structure of interest rates is influenced byThe term st.pdf
The term structure of interest rates is influenced by
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Solution
Structure of interest rates changes daily to reflect current competitive conditions in the money
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Interest rates are influenced by many factors such as :
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The textbook (Engineering Materials - Properties and Selection) divi.pdf
The textbook (Engineering Materials - Properties and Selection) divides wear into 3 categories:
adhesion, abrasion, and surface fatigue. For each of these, list the type of wear found in each.
Solution
Wear :- Wear is a erosion of material from its derivative and orginal position on solid surface
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Different types of wears
1) Adhesive wear
2)Abrasion wear
3) Surface fatigue
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