Choose a TOTAL of two questions to write about, but please choose different plays for each question.  You may use books, notes, Power Points, dictionaries, translators, etc.  Just please do not use the internet to find your answers.  Length of essays will vary, but be sure to use specific examples to make the point you are making and include an opening and closing paragraph (4 or 5 paragraphs for each essay should suffice.)    How does the poem by Langston Hughes, from which the play A Raisin in the Sun takes its name, relate to the themes in the play?     What happens to a dream deferred?   Does it dry up   like a raisin in the sun?   Or fester like a sore—   And then run?   Does it stink like rotten meat?   Or crust and sugar over—   like a syrupy sweet?   Maybe it just sags   like a heavy load.    Or does it explode?  What sort of statement does Lorraine Hansberry (the author) seem to be making about race? Does she make more than one statement? If so, do these statements conflict with each other? Of the major characters in A Raisin in the Sun (Beneatha, Walter Lee, Mama, Ruth), choose one which you would consider to be a protagonist and which to be an antagonist and explain why.  The Glass Menagerie Of the main characters (Tom, Laura, or Amanda), which face life most unrealistically?  Does this contribute to the themes of illusion versus reality featured in the play? Discuss the symbol of the glass menagerie. What does it represent? Does it represent the same things throughout the play, or does its meaning change?  Triffles What life was like for Minnie Wright when John Wright was alive? How do the props in the play come to represent their life together, and the motive for his murder? How might the circumstances of the character Minnie Wright compare to Mrs. Mallard from The Story of an Hour or the narrator from The Yellow Wallpaper? Formal Essay ENG 102 This criterion is linked to a Learning Outcome Claim/Focus Claim and Focus: Take an arguable stance on the issue and develop the essay around that stance. 50.0 pts Advanced The essay introduces an interesting, clear, arguable, and precise claim, based on the topic or text(s) and establishes the significance of the claim. The essay maintains strong focus on the purpose and task, using the whole essay to support and develop the claim and counterclaims fairly while thoroughly addressing demands of the prompt. 40.0 pts Proficient The essay introduces a clear, arguable, and specific claim, based on the topic or text(s). The essay maintains focus on the purpose and task, using most of the essay to support and develop the claim and counterclaims while thoroughly addressing the demands of the prompt. 30.0 pts Developing The essay introduces a clear, arguable, and specific claim, based on the topic or text(s), but it may somewhat unclear or not maintained throughout the essay. The essay may not fully address the demands of the prompt or stay focused on the purpose and task. The writing may ...

1. Choose a TOTAL of two questions to write about, but please
choose different plays for each question. You may use books,
notes, Power Points, dictionaries, translators, etc. Just please
do not use the internet to find your answers. Length of essays
will vary, but be sure to use specific examples to make the point
you are making and include an opening and closing paragraph (4
or 5 paragraphs for each essay should suffice.)
How does the poem by Langston Hughes, from which the play A
Raisin in the Sun takes its name, relate to the themes in the
play?
What happens to a dream deferred?
Does it dry up
like a raisin in the sun?
Or fester like a sore—
And then run?
Does it stink like rotten meat?
Or crust and sugar over—
like a syrupy sweet?
Maybe it just sags
like a heavy load.
Or does it explode?
What sort of statement does Lorraine Hansberry (the author)
seem to be making about race? Does she make more than one
statement? If so, do these statements conflict with each other?
Of the major characters in A Raisin in the Sun (Beneatha,
Walter Lee, Mama, Ruth), choose one which you would
consider to be a protagonist and which to be an antagonist and
explain why.

2. The Glass Menagerie
Of the main characters (Tom, Laura, or Amanda), which face
life most unrealistically? Does this contribute to the themes of
illusion versus reality featured in the play?
Discuss the symbol of the glass menagerie. What does it
represent? Does it represent the same things throughout the
play, or does its meaning change?
Triffles
What life was like for Minnie Wright when John Wright was
alive? How do the props in the play come to represent their life
together, and the motive for his murder?
How might the circumstances of the character Minnie Wright
compare to Mrs. Mallard from The Story of an Hour or the
narrator from The Yellow Wallpaper?
Formal Essay ENG 102
This criterion is linked to a Learning Outcome
Claim/Focus
Claim and Focus:
Take an arguable stance on the issue and develop the essay
around that stance.
50.0 pts
Advanced
The essay introduces an interesting, clear, arguable, and precise
claim, based on the topic or text(s) and establishes the
significance of the claim. The essay maintains strong focus on
the purpose and task, using the whole essay to support and
develop the claim and counterclaims fairly while thoroughly
addressing demands of the prompt.
40.0 pts
Proficient
The essay introduces a clear, arguable, and specific claim,

3. based on the topic or text(s). The essay maintains focus on the
purpose and task, using most of the essay to support and
develop the claim and counterclaims while thoroughly
addressing the demands of the prompt.
30.0 pts
Developing
The essay introduces a clear, arguable, and specific claim,
based on the topic or text(s), but it may somewhat unclear or
not maintained throughout the essay. The essay may not fully
address the demands of the prompt or stay focused on the
purpose and task. The writing may stray off topic at times.
Counterclaims may not be presented evenly or objectively.
10.0 pts
Emerging
The essay does not clearly make a claim, or the claim is overly
simplistic or vague. The essay does not maintain focus on
purpose or task. The essay does not address counterclaims.
0.0 pts
Not completed
There is no sense of a thesis statement or focus to the essay.
This criterion is linked to a Learning Outcome
Quotations/Examples
Support and Evidence:
Explain relevant facts, definitions, quotations, and examples to
back up the claim.
50.0 pts
Advanced
The essay cites the most relevant, appropriate, and valid
evidence to support its claim and the counterclaims while fully
explaining how the evidence cited and reasons support the
claim. The essay demonstrates reasoning and full understanding
of the topic and/or text(s), thoroughly stating the strengths and

4. weaknesses of both the claim and the counterclaim(s).
Counterclaims are acknowledged and/or distinguished from
essay's central claim. The essay anticipates the audience's
background knowledge, potential biases, and concerns.
40.0 pts
Proficient
The essay cites clear, relevant, and appropriate evidence related
to the claim and counterclaims while explaining how the
evidence supports the claim. The essay demonstrates some
logical reasoning and understanding of the topic and/or text(s)
and states the strengths and weaknesses of both the claim and
counterclaim(s). Counterclaims are acknowledged but may be
only generally explained and/or distinguished from the essay's
central claim.
30.0 pts
Developing
The essay uses some evidence but may not precisely explain
how it supports the claim and/or the claim is not properly
distinguished from the counterclaim. The essay includes some
reasoning and understanding of the topic and/or text(s), but the
strengths and weaknesses of the claim and counterclaims may
be confusing, unclear, or absent.
10.0 pts
Emerging
The essay does not use clear or relevant evidence or reasoning
to support the claim or to demonstrate an understanding of the
topic or text(s) or uses very little evidence from the source.
Counter claims are not acknowledged, addressed, or
distinguished from the claim.
0.0 pts
Not Completed
No examples or evidence provided from the text.
This criterion is linked to a Learning Outcome
Organization

5. Organization:
Explain your position using transitions and a strong
introduction and conclusion.
50.0 pts
Advanced
The essay incorporates an organizational structure with clear
transitional words and phrases that enhances the relationships
between and among ideas (i.e. claim and evidence, claim and
counterclaim, strengths and weaknesses) and establishes
cohesion and clarity. The essay includes a logical progression
of ideas from beginning to end, including an effective
introduction and a conclusion which follows from and supports
the arguments presented.
40.0 pts
Proficient
The essay incorporates an organizational structure with clear
transitional words and phrases that show the relationship
between and among ideas (i.e. claim and evidence, claim and
counterclaim, strengths and weaknesses). The essay includes a
progression of ideas from beginning to end, including an
introduction and conclusion which generally supports the
argument presented.
30.0 pts
Developing
The essay uses a basic organizational structure but relationships
between and among ideas are not consistently clear, including
the explanation of the claim and the counterclaims or their
strengths and weaknesses. The essay may move from beginning
to end; however, the introduction and/or conclusion may be
overly formulaic and/or repetitious.
10.0 pts
Emerging
The essay does not have a clear organizational structure and
may simply offer a series of ideas without any clear transitions

6. or connections. An introduction and/or conclusion are not
evident
0.0 pts
Not Completed
No organization or paragraph structure.
This criterion is linked to a Learning Outcome
Language/Style
Language and Style:
Pay attention to using active words, a formal tone, and a variety
of sentence structures.
50.0 pts
Advanced
The essay demonstrates a definitive perspective and voice, as
well as a clear command of conventions. The essay incorporates
language that appeals to the reader's interests and effectively
maintains a formal style and objective tone. The essay
consistently employs vivid word choice and varied sentence
structure.
40.0 pts
Proficient
The essay demonstrates a perspective and voice, as well as a
general command of conventions. The essay incorporates
language that shows an awareness of the reader's interests and
generally maintains a formal style and somewhat objective tone
with few possible exceptions. The essay employs interesting
word choices and some variety in sentence structure.
30.0 pts
Developing
The essay demonstrates an uneven and/or inconsistent
perspective and/or voice; it may also contain errors in
conventions that interfere with meaning. The essay incorporates
language that may not show an awareness of the reader's

7. interests and does not maintain a formal and/or objective style
consistently. Some attempts at strong word choices are made,
and sentence structure may not vary.
10.0 pts
Emerging
The essay does not demonstrate a clear voice and/or perspective
and may contain pervasive errors in conventions that interfere
with meaning. The essay employs language that is inappropriate
for the reader's interests and is not formal in style or objective
in tone. Word choice is uninteresting or poor, and sentence
structures are simplistic and unvaried.
0.0 pts
Not Completed
The amount of grammatical errors prevents the reader from
understanding any points of the essay.
Deliverable 3 - Confidence Intervals
Competency
Given a real-life application, develop a confidence interval for a
population parameter and its interpretation.
Instructions
Scenario (Information repeated for deliverable 01, 03, and 04)
A major client of your company is interested in the salary
distributions of jobs in the state of Minnesota that range from
$30,000 to $200,000 per year. As a Business Analyst, your boss
asks you to research and analyze the salary distributions. You
are given a spreadsheet that contains the following information:
· A listing of the jobs by title
· The salary (in dollars) for each job
You have previously explained some of the basic statistics to
your client already, and he really liked your work. Now he
wants you to analyze the confidence intervals.

8. Background information on the Data
The data set in the spreadsheet consists of 364 records that you
will be analyzing from the Bureau of Labor Statistics. The data
set contains a listing of several jobs titles with yearly salaries
ranging from approximately $30,000 to $200,000 for the state of
Minnesota.
What to Submit
Your boss wants you to submit the spreadsheet with the
completed calculations. Your research and analysis should be
present within the answers provided on the worksheet.
DataJob TitleSalaryAccountants and Auditors70500source:
http://www.bls.gov/Actuaries102880Administrative Law Judges,
Adjudicators, and Hearing Officers117190Administrative
Services Managers96180Adult Basic and Secondary Education
and Literacy Teachers and Instructors63940Advertising and
Promotions Managers104130Advertising Sales
Agents51740Aerospace Engineering and Operations
Technicians56140Aerospace Engineers115220Agents and
Business Managers of Artists, Performers, and
Athletes74580Agricultural and Food Science
Technicians42060Agricultural Inspectors54140Agricultural
Sciences Teachers, Postsecondary87390Air Traffic
Controllers124540Aircraft Cargo Handling
Supervisors52480Aircraft Structure, Surfaces, Rigging, and
Systems Assemblers51410Airfield Operations
Specialists59800Airline Pilots, Copilots, and Flight
Engineers115670Anthropologists and
Archeologists57720Appraisers and Assessors of Real
Estate52870Arbitrators, Mediators, and
Conciliators86430Architects, Except Landscape and
Naval81000Architectural and Civil Drafters62210Architecture
and Engineering Occupations73850Architecture Teachers,
Postsecondary73870Archivists60730Art Directors92680Art,

9. Drama, and Music Teachers, Postsecondary78700Athletic
Trainers45440Atmospheric and Space
Scientists93900Atmospheric, Earth, Marine, and Space Sciences
Teachers, Postsecondary96590Audiologists97230Avionics
Technicians47320Biomedical
Engineers99000Boilermakers76310Broadcast News
Analysts71040Brokerage Clerks57260Budget
Analysts75940Business and Financial Operations
Occupations64880Business Operations Specialists, All
Other67980Business Teachers, Postsecondary119810Buyers and
Purchasing Agents, Farm Products62290Camera and
Photographic Equipment Repairers32280Captains, Mates, and
Pilots of Water Vessels63890Cardiovascular Technologists and
Technicians59630Career/Technical Education Teachers, Middle
School69050Career/Technical Education Teachers, Secondary
School63430Cargo and Freight Agents40910Cartographers and
Photogrammetrists72120Chefs and Head Cooks47660Chemical
Engineers87200Chemical Equipment Operators and
Tenders45460Chemical Plant and System
Operators54920Chemical Technicians50360Chemistry Teachers,
Postsecondary96330Chemists76620Child, Family, and School
Social Workers58140Chiropractors86820Civil
Engineers91430Claims Adjusters, Examiners, and
Investigators66030Clinical, Counseling, and School
Psychologists76150Coil Winders, Tapers, and
Finishers36610Commercial and Industrial
Designers66710Commercial Pilots104420Communications
Equipment Operators, All Other43160Communications
Teachers, Postsecondary85310Community and Social Service
Occupations43790Community Health
Workers37190Compensation and Benefits
Managers121570Compensation, Benefits, and Job Analysis
Specialists67210Compliance Officers71780Computer and
Information Research Scientists121310Computer and
Information Systems Managers137140Computer and
Mathematical Occupations81640Computer Hardware

10. Engineers95500Computer Network Architects112050Computer
Network Support Specialists70940Computer Occupations, All
Other92960Computer Programmers84280Computer Science
Teachers, Postsecondary89290Computer Systems
Analysts90600Computer User Support
Specialists53680Conservation Scientists67540Construction and
Building Inspectors64150Construction
Managers99150Continuous Mining Machine
Operators55330Control and Valve Installers and Repairers,
Except Mechanical Door64960Conveyor Operators and
Tenders35110Cost Estimators69480Crane and Tower
Operators53980Credit Analysts72870Credit
Counselors46720Criminal Justice and Law Enforcement
Teachers, Postsecondary66980Curators66230Database
Administrators91730Dental Hygienists71930Derrick Operators,
Oil and Gas38120Detectives and Criminal
Investigators90890Diagnostic Medical
Sonographers74340Dietitians and Nutritionists60370Directors,
Religious Activities and Education43690Drafters, All
Other51790Economics Teachers,
Postsecondary137920Economists106280Editors58820Education
Administrators, All Other79960Education Administrators,
Elementary and Secondary School103570Education
Administrators, Postsecondary110110Education Administrators,
Preschool and Childcare Center/Program65860Education
Teachers, Postsecondary65020Education, Training, and Library
Occupations47920Educational, Guidance, School, and
Vocational Counselors56550Electric Motor, Power Tool, and
Related Repairers63800Electrical and Electronics
Drafters69010Electrical and Electronics Engineering
Technicians68060Electrical and Electronics Installers and
Repairers, Transportation Equipment54060Electrical and
Electronics Repairers, Commercial and Industrial
Equipment55970Electrical and Electronics Repairers,
Powerhouse, Substation, and Relay81590Electrical
Engineers91870Electrical Power-Line Installers and

11. Repairers67430Electricians74010Electro-Mechanical
Technicians54700Electronics Engineers, Except
Computer100610Elementary School Teachers, Except Special
Education62620Elevator Installers and
Repairers88340Embalmers48770Emergency Management
Directors79270Engineering Technicians, Except Drafters, All
Other63250English Language and Literature Teachers,
Postsecondary81700Environmental Engineering
Technicians56810Environmental Engineers84870Environmental
Science and Protection Technicians, Including
Health45090Environmental Science Teachers,
Postsecondary92530Environmental Scientists and Specialists,
Including Health84320Epidemiologists85620Executive
Secretaries and Executive Administrative
Assistants55770Exercise Physiologists54300Explosives
Workers, Ordnance Handling Experts, and
Blasters62910Extruding, Forming, Pressing, and Compacting
Machine Setters, Operators, and Tenders38680Farm and Home
Management Advisors38940Film and Video
Editors62280Financial Analysts85660Financial Clerks, All
Other44080Financial Examiners99800Financial
Managers134370Financial Specialists, All Other87690Fire
Inspectors and Investigators58590Firefighters49620First-Line
Supervisors of Construction Trades and Extraction
Workers82160First-Line Supervisors of Correctional
Officers84290First-Line Supervisors of Farming, Fishing, and
Forestry Workers42540First-Line Supervisors of Fire Fighting
and Prevention Workers91930First-Line Supervisors of Helpers,
Laborers, and Material Movers, Hand49590First-Line
Supervisors of Landscaping, Lawn Service, and Groundskeeping
Workers54280First-Line Supervisors of Mechanics, Installers,
and Repairers66430First-Line Supervisors of Non-Retail Sales
Workers72920First-Line Supervisors of Office and
Administrative Support Workers58120First-Line Supervisors of
Police and Detectives101240First-Line Supervisors of
Production and Operating Workers60990First-Line Supervisors

12. of Protective Service Workers, All Other46280First-Line
Supervisors of Transportation and Material-Moving Machine
and Vehicle Operators58250Fish and Game Wardens88120Food
Service Managers51340Foreign Language and Literature
Teachers, Postsecondary73350Forensic Science
Technicians79630Forest and Conservation
Technicians46640Foresters65970Forestry and Conservation
Science Teachers, Postsecondary90080Fundraisers57720Funeral
Service Managers82590Gaming Supervisors32220Gas
Compressor and Gas Pumping Station Operators62720Gas Plant
Operators70130General and Operations
Managers124190Geography Teachers,
Postsecondary82530Geological and Petroleum
Technicians39180Geoscientists, Except Hydrologists and
Geographers70730Health and Safety Engineers, Except Mining
Safety Engineers and Inspectors84880Health Diagnosing and
Treating Practitioners, All Other67650Health
Educators58050Health Specialties Teachers,
Postsecondary136670Health Technologists and Technicians, All
Other45940Healthcare Practitioners and Technical
Occupations67470Healthcare Social Workers53600Hearing Aid
Specialists46970Historians70840History Teachers,
Postsecondary88590Hoist and Winch Operators80,660Home
Economics Teachers, Postsecondary74490Human Resources
Managers112430Human Resources Specialists61460Industrial
Engineering Technicians55460Industrial
Engineers82720Industrial Machinery Mechanics55930Industrial
Production Managers100480Information and Record Clerks, All
Other45700Information Security Analysts97360Installation,
Maintenance, and Repair Occupations45990Instructional
Coordinators66810Insurance Appraisers, Auto
Damage70380Insurance Sales Agents66080Insurance
Underwriters76990Interior Designers62010Judges, Magistrate
Judges, and Magistrates58140Kindergarten Teachers, Except
Special Education55850Labor Relations
Specialists51870Landscape

13. Architects68960Lawyers140920Layout Workers, Metal and
Plastic42830Legal Occupations82900Legal Support Workers,
All Other59800Librarians56320Library Science Teachers,
Postsecondary78830Life Scientists, All Other82630Life,
Physical, and Social Science Occupations62840Loading
Machine Operators, Underground Mining41270Loan
Officers63040Locomotive Engineers71960Logging Workers, All
Other41940Logisticians74600Magnetic Resonance Imaging
Technologists70580Management Analysts92200Managers, All
Other88600Marine Engineers and Naval Architects82410Market
Research Analysts and Marketing Specialists62380Marketing
Managers122260Marriage and Family Therapists55600Materials
Engineers91510Mathematical Science Teachers,
Postsecondary78880Mechanical Drafters58540Mechanical
Engineering Technicians60220Mechanical
Engineers92040Media and Communication Equipment Workers,
All Other76540Medical and Clinical Laboratory
Technologists65770Medical and Health Services
Managers113030Medical Equipment Repairers58310Meeting,
Convention, and Event Planners52370Mental Health
Counselors46580Metal-Refining Furnace Operators and
Tenders44990Middle School Teachers, Except Special and
Career/Technical Education66630Millwrights58660Mine
Cutting and Channeling Machine Operators46250Mine Shuttle
Car Operators56930Mining and Geological Engineers, Including
Mining Safety Engineers93920Mining Machine Operators, All
Other69160Mixing and Blending Machine Setters, Operators,
and Tenders41970Mobile Heavy Equipment Mechanics, Except
Engines58950Model Makers, Metal and Plastic57100Morticians,
Undertakers, and Funeral Directors69800Multimedia Artists and
Animators59890Music Directors and Composers46260Natural
Sciences Managers113620Network and Computer Systems
Administrators87700Nuclear Engineers121650Nuclear Medicine
Technologists79440Nuclear Technicians88770Nurse
Practitioners101960Nursing Instructors and Teachers,
Postsecondary72450Occupational Health and Safety

14. Specialists75610Occupational Health and Safety
Technicians61740Occupational Therapists82290Occupational
Therapy Assistants61860Operations Research
Analysts90310Optometrists111790Orthotists and
Prosthetists82380Painters, Transportation
Equipment45230Paper Goods Machine Setters, Operators, and
Tenders37110Paralegals and Legal
Assistants56990Patternmakers, Metal and Plastic56260Personal
Financial Advisors121750Petroleum Pump System Operators,
Refinery Operators, and
Gaugers66550Pharmacists120280Philosophy and Religion
Teachers, Postsecondary78010Physical Therapist
Assistants57750Physical Therapists90040Physician
Assistants104730Physicists118520Physics Teachers,
Postsecondary89040Plant and System Operators, All
Other56830Plumbers, Pipefitters, and
Steamfitters77570Podiatrists192180Police and Sheriff's Patrol
Officers73870Political Science Teachers,
Postsecondary90250Postal Service Clerks49310Postal Service
Mail Carriers50160Postal Service Mail Sorters, Processors, and
Processing Machine Operators49820Postmasters and Mail
Superintendents75620Power Distributors and
Dispatchers84830Power Plant Operators79100Precision
Instrument and Equipment Repairers, All Other64170Private
Detectives and Investigators58290Probation Officers and
Correctional Treatment Specialists64300Producers and
Directors75970Production, Planning, and Expediting
Clerks48390Property, Real Estate, and Community Association
Managers66710Psychologists, All Other79010Psychology
Teachers, Postsecondary89680Public Relations and Fundraising
Managers115180Public Relations Specialists63620Pump
Operators, Except Wellhead Pumpers51520Purchasing Agents,
Except Wholesale, Retail, and Farm Products61760Purchasing
Managers111380Radiation Therapists84640Radio, Cellular, and
Tower Equipment Installers and Repairers49240Radiologic
Technologists63100Rail Yard Engineers, Dinkey Operators, and

15. Hostlers54790Railroad Conductors and Yardmasters65740Rail-
Track Laying and Maintenance Equipment Operators54600Real
Estate Brokers86260Real Estate Sales Agents59010Recreation
and Fitness Studies Teachers, Postsecondary60080Recreational
Vehicle Service Technicians34450Refractory Materials
Repairers, Except Brickmasons49210Registered
Nurses71730Reinforcing Iron and Rebar
Workers86290Respiratory Therapists56910Rolling Machine
Setters, Operators, and Tenders, Metal and Plastic38060Roof
Bolters, Mining58900Rotary Drill Operators, Oil and
Gas49720Sales Engineers98760Sales Managers128340Sales
Representatives, Services, All Other61930Sales
Representatives, Wholesale and Manufacturing, Except
Technical and Scientific Products69900Sales Representatives,
Wholesale and Manufacturing, Technical and Scientific
Products81950Secondary School Teachers, Except Special and
Career/Technical Education68380Securities, Commodities, and
Financial Services Sales Agents86070Service Unit Operators,
Oil, Gas, and Mining42200Set and Exhibit Designers54620Ship
Engineers69300Signal and Track Switch Repairers37720Social
and Community Service Managers63870Social Scientists and
Related Workers, All Other79960Social Work Teachers,
Postsecondary54580Social Workers, All Other65890Sociology
Teachers, Postsecondary87710Software Developers,
Applications96110Software Developers, Systems
Software106700Soil and Plant Scientists57080Sound
Engineering Technicians58660Special Education Teachers, All
Other59400Special Education Teachers, Kindergarten and
Elementary School65430Special Education Teachers, Middle
School62160Special Education Teachers, Secondary
School68560Speech-Language Pathologists78760Stationary
Engineers and Boiler
Operators79090Statisticians88190Surveyors62580Tank Car,
Truck, and Ship Loaders45470Tax Examiners and Collectors,
and Revenue Agents79850Technical
Writers67410Telecommunications Equipment Installers and

16. Repairers, Except Line Installers57580Tire Builders42500Tool
and Die Makers54680Training and Development
Managers101500Training and Development
Specialists59910Transportation Inspectors86790Transportation,
Storage, and Distribution Managers92220Urban and Regional
Planners79510Veterinarians93830Water and Wastewater
Treatment Plant and System Operators54560Web
Developers69430Wholesale and Retail Buyers, Except Farm
Products59080Writers and Authors62170Zoologists and
Wildlife Biologists63420
Sheet2
Sheet3
Deliverable 03 Worksheet
1. Discuss the importance of constructing confidence intervals
for the population mean by answering these questions.
· What are confidence intervals?
· What is a point estimate?
· What is the best point estimate for the population mean?
Explain.
· Why do we need confidence intervals?
Answer and Explanation:
Enter your step-by-step answer and explanations here.
2. Using the data from the Excel workbook, construct
a 95% confidence interval for the population mean. Assume that
your data is normally distributed and σ is unknown. Include a
statement that correctly interprets the confidence interval in
context of the scenario.
Hint: Use the sample mean and sample standard deviation from
Deliverable 1.
Answer and Explanation:
Enter your step-by-step answer and explanations here.
3. Using the data from the Excel workbook, construct

17. a 99% confidence interval for the population mean. Assume that
your data is normally distributed and σ is unknown. Include a
statement that correctly interprets the confidence interval in
context of the scenario.
Hint: Use the sample mean and sample standard deviation from
Deliverable 1.
Answer and Explanation:
Enter your step-by-step answer and explanations here.
4. Compare your answers for (2) and (3). You notice that the
99% confidence interval is wider. What is the advantage of
using a wider confidence interval? Why would you not always
use the 99% confidence interval? Explain with an example.
Answer and Explanation:
Enter your step-by-step answer and explanations here.
5. We want to estimate the mean salary in Minnesota. How
many jobs must be randomly selected for their respective mean
salaries if we want 95% confidence that the sample mean is
within $126 of the population mean and σ = $1150.
Is the current sample size of 364 in the data set in our Excel
workbook large enough? Explain.
Answer and Explanation:
Enter your step-by-step answer and explanations here.