This document provides a guide for a QNT 351 final exam, including 31 multiple choice questions covering topics in statistics such as hypothesis testing, probability, distributions, and sampling. The questions assess understanding of key statistical concepts and calculations related to analyzing sample data and drawing conclusions about populations.
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Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds.
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Q1
The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
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Q1
The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
2An auditor for American Health Insurance reports that 20% of policyholders submit a claim during the year. 15 policyholders are selected randomly. What is the probability that at least 3 of them submitted a claim the previous year?
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Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds
For more course tutorials visit
www.qnt351.com
Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds.
For more classes visit
www.snaptutorial.com
Q1
The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
For more classes visit
www.snaptutorial.com
Q1
The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
2An auditor for American Health Insurance reports that 20% of policyholders submit a claim during the year. 15 policyholders are selected randomly. What is the probability that at least 3 of them submitted a claim the previous year?
For more course tutorials visit
www.qnt351.com
Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds
For more course tutorials visit
www.qnt351.com
Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds.
A Study on Improving The Market Share of Milma Milk - With Special Reference ...inventionjournals
Customer satisfaction and trust are two important factors which influence any market. In this modern age it is very difficult to find a customer who is loyal to a single brand. But still there exist some cooperative companies which can create undivided demand in the market creating a natural monopoly. It is mainly because of the trust the customers put into it. The main objective of this project is to study the performance of MILMA in terms of its market share, satisfaction level of customers and dealers, customer loyalty, awareness of customers about the homogenisation technique and to determine the factors affecting the market share of MILMA. Research methodology employed is Statistical Research and Qualitative Research. Data’s were collected from both primary and secondary sources. Questionnaire Method is used to collect data’s from customers as well as dealers. Analysing the data collected, it is understood that MILMA have developed a fairly good demand, but being the only cooperative society in Kerala it should have been in a better position than it is in now. The main reasons for this situation are found to be unawareness among people about the homogenisation process to make fat content same, low commission rate for the dealers, and the problem of leakage. If proper measures are taken to ensure proper packaging without leakage and proper commission for the dealers, more dealers could be attracted. Customers should be educated about the homogenisation technique.
QNT 351 PAPER Education for Service--qnt351paper.commamata53
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Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
For more classes visit
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Q1
The Director of Golf for a local course wants to study the number of rounds played by members on weekdays.
Qnt 351 final exam new april 2016 versionAdams-ASs
QNT 351 FINAL EXAM NEW APRIL 2016 VERSION
Buy Solutions: http://hwsoloutions.com/downloads/qnt-351-final-exam-new-april-2016-version/
QNT 351 FINAL EXAM
NEW APRIL 2016 VERSION
A time series trend equation for Hammer Hardware is Y’ = 5.6 + 1.2t, where sales are in millions of dollars and t increases by one unit for each year. If the value of sales in the base year of 2016 is $5.6 million, what would be the estimated sales amount for 2018?
$8 million
$6.8 million
Unable to determine from given information
$5.6 million
A weight-loss company wants to statistically prove that its methods work. They randomly selected 10 clients who had been on the weight loss program for between 55 and 65 days. They looked at their beginning weights and their current weight. The statistical test they should utilize is:
t test for difference in paired samples
z test for two population proportions
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1) The main purpose of descriptive statistics is to
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
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Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds.
A Study on Improving The Market Share of Milma Milk - With Special Reference ...inventionjournals
Customer satisfaction and trust are two important factors which influence any market. In this modern age it is very difficult to find a customer who is loyal to a single brand. But still there exist some cooperative companies which can create undivided demand in the market creating a natural monopoly. It is mainly because of the trust the customers put into it. The main objective of this project is to study the performance of MILMA in terms of its market share, satisfaction level of customers and dealers, customer loyalty, awareness of customers about the homogenisation technique and to determine the factors affecting the market share of MILMA. Research methodology employed is Statistical Research and Qualitative Research. Data’s were collected from both primary and secondary sources. Questionnaire Method is used to collect data’s from customers as well as dealers. Analysing the data collected, it is understood that MILMA have developed a fairly good demand, but being the only cooperative society in Kerala it should have been in a better position than it is in now. The main reasons for this situation are found to be unawareness among people about the homogenisation process to make fat content same, low commission rate for the dealers, and the problem of leakage. If proper measures are taken to ensure proper packaging without leakage and proper commission for the dealers, more dealers could be attracted. Customers should be educated about the homogenisation technique.
QNT 351 PAPER Education for Service--qnt351paper.commamata53
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Q1 The Director of Golf for a local course wants to study the number of rounds played by members on weekdays. He gathered the sample information shown below for 520 rounds. At the .05 significance level, is there a difference in the number of rounds played by day of the week?
For more classes visit
www.snaptutorial.com
Q1
The Director of Golf for a local course wants to study the number of rounds played by members on weekdays.
Qnt 351 final exam new april 2016 versionAdams-ASs
QNT 351 FINAL EXAM NEW APRIL 2016 VERSION
Buy Solutions: http://hwsoloutions.com/downloads/qnt-351-final-exam-new-april-2016-version/
QNT 351 FINAL EXAM
NEW APRIL 2016 VERSION
A time series trend equation for Hammer Hardware is Y’ = 5.6 + 1.2t, where sales are in millions of dollars and t increases by one unit for each year. If the value of sales in the base year of 2016 is $5.6 million, what would be the estimated sales amount for 2018?
$8 million
$6.8 million
Unable to determine from given information
$5.6 million
A weight-loss company wants to statistically prove that its methods work. They randomly selected 10 clients who had been on the weight loss program for between 55 and 65 days. They looked at their beginning weights and their current weight. The statistical test they should utilize is:
t test for difference in paired samples
z test for two population proportions
For more classes visit
www.snaptutorial.com
1) The main purpose of descriptive statistics is to
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
Exercise 7-1 Q # 10 Number of faculty. the numbers of faculty .docxgitagrimston
Exercise 7-1
Q # 10
Number of faculty. the numbers of faculty at 32 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enrollment under 12,000 with 92% confidence. assume .
211
384
396
211
224
337
395
121
356
621
367
408
515
280
289
180
431
176
318
836
203
374
224
121
412
134
539
471
638
425
159
324
Q # 14
Number of jobs. a sociologist found that in a sample of 50 retired men, the average number of jobs they had during their lifetimes was 7.2. the population standard deviation is 2.1.
a. find the best point to estimate of the population men.
b.find the 95 % confidence interval of the mean number of jobs.
c.find the 99% confidence interval of the mean number of jobs.
d. which is smaller? explain why.
Q # 18
Day care tuition. a random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and the population standard deviation of $630. find the 90% confidence interval of the true mean. if a day care center were starting up and wanted to keep tuition low. what would be a reasonable amount to charge?
Exercise 7-2
Q # 8
State Gasoline Taxes. a random sample of state gasoline taxes ( in cents ) is shown here for 12 states. use the data to estimate the true population mean gasoline tax with 90% confidence. does your interval contain the national average of 44.7 cents?
38.4
40.9
67
32.5
51.5
43.4
38
43.4
50.7
35.4
39.3
41.4
Q # 10
Dance Company Students. the number of students who belong to dance company at each of several randomly selected small universities is shown below. estimate the true population mean size of a university dance company with 99% confidence.
21
25
32
22
28
30
29
30
47
26
35
26
35
26
28
28
32
27
40
Exercise 7-3
Q # 6
Belief in haunted places. a random sample of 205 college students were asked if they believed that places could be haunted, and 65 responded yes. estimate the true proportion of college students who believed in the possibility of haunted places with 99% confidence. according to time magazine,37% of americans believe that places can be haunted.
Q # 14
Fighting U.S hunger. in a poll of 1000 likely voters, 560 say that the united states spends too little on fighting hunger at home. find a 95% confidence interval for the true proportion of voters who feel this way.
Exercise 8-2
Q # 4
Moviegoers. the average moviegoer sees 8.5 movies a year. a moviegoer is defined as a person who sees at least one movie in a theater in a 12 month period. a random sample of 40 moviegoers from a large university revealed that the average number of movies seen per person was 9.6. The population standard deviation is 3.2 movies. at the 0.05 level of significance, can it be concluded that this represents a difference from the national average?
Q # 8
Salaries of government employees. the mean salary o ...
QNT 275 FINAL EXAM NEW 2016
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What is the name of the variable that’s used to predict another variable?
Explanatory
Standard error of the estimate
Response
Coefficient of determination
Professors at a local university earn an average salary of $80000 with a standard deviation of $6000. The salary distribution is approximately bell-shaped. What can be said about the percentage of salaries that are at least $74,000?
About 97.5 percent
About 84 percent
About 68 percent
About 95 percent
What type of relationship is indicated in the scatterplot?
A positive linear or curvilinear relationship
No relationship
A negative curvilinear relationship
A negative linear relationship
The study of statistics can be defined as:
the art and science of getting information from data.
All of the answers
the language of data.
the study of collecting, analyzing, presenting, and interpreting data.
In the accompanying stem-and-leaf diagram the values in the stem and leaf portions represent 10s and 1s digits, respectively.
The stem-and-leaf diagram shows that the distribution is ___________.
symmetric
positively skewed
negatively skewed
None of the ans
Qnt 351 final exam august 2017 new versionAdams-ASs
QNT 351 FINAL EXAM AUGUST 2017 NEW VERSION
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QNT 351 FINAL EXAM AUGUST 2017 NEW VERSION
QNT 351 FINAL EXAM AUGUST 2017 NEW VERSION
The mean amount spent by a family of four on food is $500 per month with a standard deviation of $75. Assuming that the food costs are normally distributed, what is the probability that a family spends less than $410 per month?
• 0.1151
• 0.0362
• 0.8750
• 0.2158
As the size of the sample increases, what happens to the shape of the distribution of sample means?
• It cannot be predicted in advance.
• It is negatively skewed.
• It approaches a normal distribution.
• It is positively skewed.
What is the following table called?
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
2024.06.01 Introducing a competency framework for languag learning materials ...
QNT 351 Final Exam Guide (New) P
1. QNT 351 Final Exam Guide (New)
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Q1 The Director of Golf for a local course wants to study the number of rounds played by
members on weekdays. He gathered the sample information shown below for 520 rounds.
At the .05 significance level, is there a difference in the number of rounds played by day
of the week?
2 An auditor for American Health Insurance reports that 20% of policyholders submit a
claim during the year. 15 policyholders are selected randomly. What is the probability
that at least 3 of them submitted a claim the previous year?
3 When a class interval is expressed as 100 up to 200, _________________________.
4 A coffee manufacturer is interested in whether the mean daily consumption of regular-
coffee drinkers is less than that of decaffeinated-coffee drinkers. A random sample of 50
regular-coffee drinkers showed a mean of 4.35 cups per day, with a standard deviation of
1.2 cups per day. A sample of 40 decaffeinated coffee drinkers showed a mean of 5.84
cups per day, with a standard deviation of 1.36 cups per day. What is your computed z-
statistic?
5 You perform a hypothesis test at the .05 level of significance. Your computed p-value
turns out to .042. What is your decision about the hypothesis?
6 In a distribution, the second quartile corresponds with the __________.
7 The MacBurger restaurant chain claims that the waiting time of customers for service
is normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute.
The quality-assurance department found in a sample of 50 customers at the Warren Road
MacBurger that the mean waiting time was 2.75 minutes. When you perform a test of
hypothesis, what would be the resulting p-value?
8 The first card selected from a standard 52-card deck was a king. If it is returned to the
deck, what is the probability that a king will be drawn on the second selection?
9 An example of a qualitative variable is _________________.
2. 10 When statisticians analyze sample data in order to draw conclusions about the
characteristics of a population, this is referred to as:
11 The ages of all the patients in the isolation ward of the hospital are 38, 26, 13, 41, and
22. What is the population standard deviation?
12 Consider the following regression analysis between sales (Y in $1,000) and social
media advertising (X in dollars).
13 The tread life of tires mounted on light-duty trucks follows the normal probability
distribution with a mean of 60,000 miles and a standard deviation of 4,000 miles.
Suppose you bought a set of four tires, what is the likelihood the mean tire life of these
four tires is between 57,000 and 63,000 miles?
14 University officials say that at least 70% of the voting student population supports a
fee increase. If the 95% confidence interval estimating the proportion of students
supporting the fee increase is [0.75, 0.85], what conclusion can be drawn?
15 . A study by the National Park Service revealed that 50% of the vacationers going to
the Rocky Mountain region visit Yellowstone Park, 40% visit the Grand Tetons, and 35%
visit both. What is the probability that a vacationer will visit at least one of these
magnificent attractions?
16. The distribution of a sample of the outside diameters of PVC pipes approximates a
symmetrical, bell-shaped distribution. The arithmetic mean is 14.0 inches, and the
standard deviation is 0.1 inches. About 68% of the outside diameters lie between what
two amounts?
17. A group of women tried five brands of fingernail polish and ranked them according
to preference. What level of measurement is this?
18. What is the range of values for a coefficient of correlation?
19. Which approach to probability assumes that the events are equally likely?
20 . What is the median of 26, 30, 24, 32, 32, 31, 27, and 29?
21. Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to
introduce an advertising campaign to increase daily sales. To determine the effectiveness
of the advertising campaign, a sample of 49 days of sales was taken. It found that the
average daily sales were $6,400 per day. From past history, the restaurant knew that its
population standard deviation is about $1,000. The value of the test statistic is _______.
3. 22. The mean of a normal distribution is 400 pounds. The standard deviation is 10
pounds. What is the probability of a weight between 415 pounds and the mean of 400
pounds?
23. Which of the following is true regarding the normal distribution? 24 . A time series
trend equation for Hammer Hardware is Y’ = 5.6 + 1.2t, where sales are in millions of
dollars and t increases by one unit for each year. If the value of sales in the base year of
2016 is $5.6 million, what would be the estimated sales amount for 2018?
25. A research firm conducted a survey to determine the mean amount steady smokers
spend on cigarettes during a week. A sample of 64 smokers revealed that = $20 and S
= $5. What is the 95% confidence interval for μ?
26 . A weight-loss company wants to statistically prove that its methods work. They
randomly selected 10 clients who had been on the weight loss program for between 55
and 65 days. They looked at their beginning weights and their current weight. The
statistical test they should utilize is:
27. As the size of the sample increases, what happens to the shape of the distribution of
sample means?
28. Each month the National Association of Purchasing Managers publishes the NAPM
index. One of the questions asked on the survey to purchasing agents is: Do you think
that the economy is expanding? Last month, of the 300 responses, 160 answered “yes” to
the question. This month, 170 of the 290 responses indicated that the economy is
expanding. If you’re testing to find if a larger proportion of agents believe that the
economy is expanding this month, what is your computed test statistic?
29. A group of 100 students was surveyed about their interest in a new International
Studies program. Interest was measured in terms of high, medium, or low. In the study,
30. students responded high interest, 40 students responded medium interest, and 30
students responded low interest. What is the relative frequency of students with high
interest?
31. A hypothesis regarding the weight of newborn infants at a community hospital is that
the mean is 6.6 pounds. A sample of seven infants is randomly selected and their weights
at birth are recorded as 9.0, 7.3, 6.0, 8.8, 6.8, 8.4, and 6.6 pounds. What is the alternate
hypothesis?