Deliverable 4 – Hypothesis Tests

Deliverable4-HypothesisTests.xlsx
Deliverable 4 – Hypothesis Tests
Competency
Evaluate hypothesis tests for population parameters from one population.
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 aspreadsheetthat contains the following information:
A listing of the jobs by title
The salary (in dollars) for each job
Deliverable 4 – Hypothesis Tests.xlsx
In prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in hypothesis testing and wants your conclusion about two claims concerning the average salary for all jobs in the state of Minnesota.
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, answers, and analysis.
ATTACHED FILE(S)
Data
Job Title Salary
Accountants and Auditors 67280 source: http://www.bls.gov/
Actuaries 100580
Administrative Law Judges, Adjudicators, and Hearing Officers 144840 Calculations/Values Formulas/Answers
Administrative Services Managers 97180 Mean
Adult Basic and Secondary Education and Literacy Teachers and Instructors 63940 Standard Deviation
Advertising and Promotions Managers 105130 n
Advertising Sales Agents 51740
Aerospace Engineering and Operations Technicians 57140
Aerospace Engineers 115220
Agents and Business Managers of Artists, Performers, and Athletes 74580
Agricultural and Food Science Technicians 40060
Agricultural Inspectors 54140
Agricultural Sciences Teachers, Postsecondary 87390
Air Traffic Controllers 114906
Aircraft Cargo Handling Supervisors 50380
Aircraft Structure, Surfaces, Rigging, and Systems Assemblers 51410
Airfield Operations Specialists 59800
Airline Pilots, Copilots, and Flight Engineers 115670
Anthropologists and Archeologists 51720
Appraisers and Assessors of Real Estate 52870
Arbitrators, Mediators, and Conciliators 86430
Architects, Except Landscape and Naval 81000
Architectural and Civil Drafters 62210
Architecture and Engineering Occupations 73850
Architecture Teachers, Postsecondary 73870
Archivists 76749
Art Directors 98924
Art, Drama, and Music Teachers, Postsecondary 78700
Athletic Trainers 45440
Atmospheric and Space Scientists 93900
Atmospheric, Earth, Marine, and Space Sciences Teachers, Postsecondary 96590
Audiologists 97230
Avionics Technicians 47320
Biomedical Engineers 101250
Boilermakers 76310
Broadcast News Analysts 71040
Brokerage Clerks 57260
Budget Analysts 75940
Business and Financial Operations Occupations 64880
Business Operations Specialists, All Other 67980
Business Teachers, Postsecondary 109800
Buyers and Purchasing Agents, Farm Products 62290
Camera and Photographic Equipment Repairers 32280
Captains, Mates, and Pilots of Water Vessels 63890
Cardiovascular Technologists and Technicians 59630
Career/Technical Education Teachers, Middle School 69050
Career/Technical Education Teachers, Secondary School 63430
Cargo and Freight Agents 40910
Cartographers and Photogrammetrists 72120
Chefs and Head Cooks 47660
Chemical Engineers 87200
Chemical Equipment Operators and Tenders 45460
Chemical Plant and System Operators 54920
Chemical Technicians 50360
Chemistry Teachers, Postsecondary 96330
Chemists 59630
Child, Family, and School Social Workers 58140
Chiropractors 87540
Civil Engineers 91430
Claims Adjusters, Examiners, and Investigators 66030
Clinical, Counseling, and School Psychologists 76150
Coil Winders, Tapers, and Finishers 36610
Commercial and Industrial Designers 66710
Commercial Pilots 130059
Communications Equipment Operators, All Other 43160
Communications Teachers, Postsecondary 85310
Community and Social Service Occupations 43790
Community Health Workers 37190
Compensation and Benefits Managers 123570
Compensation, Benefits, and Job Analysis Specialists 67210
Compliance Officers 67637
Computer and Information Research Scientists 121310
Computer and Information Systems Managers 137140
Computer and Mathematical Occupations 81640
Computer Hardware Engineers 95500
Computer Network Architects 115050
Computer Network Support Specialists 70940
Computer Occupations, All Other 92960
Computer Programmers 84280
Computer Science Teachers, Postsecondary 89290
Computer Systems Analysts 90600
Computer User Support Specialists 53680
Conservation Scientists 67540
Construction and Building Inspectors 64150
Construction Managers 99150
Continuous Mining Machine Operators 55330
Control and Valve Installers and Repairers, Except Mechanical Door 64960
Conveyor Operators and Tenders 35110
Cost Estimators 69480
Crane and Tower Operators 53980
Credit Analysts 72870
Credit Counselors 46720
Criminal Justice and Law Enforcement Teachers, Postsecondary 66980
Curators 66230
Database Administrators 91730
Dental Hygienists 71930
Derrick Operators, Oil and Gas 38120
Detectives and Criminal Investigators 90890
Diagnostic Medical Sonographers 74340
Dietitians and Nutritionists 60370
Directors, Religious Activities and Education 43690
Drafters, All Other 51790
Economics Teachers, Postsecondary 137920
Economists 106280
Editors 58820
Education Administrators, All Other 79960
Education Administrators, Elementary and Secondary School 103570
Education Administrators, Postsecondary 110110
Education Administrators, Preschool and Childcare Center/Program 81590
Education Teachers, Postsecondary 65020
Education, Training, and Library Occupations 47920
Educational, Guidance, School, and Vocational Counselors 56550
Electric Motor, Power Tool, and Related Repairers 63800
Electrical and Electronics Drafters 69010
Electrical and Electronics Engineering Technicians 68060
Electrical and Electronics Installers and Repairers, Transportation Equipment 54060
Electrical and Electronics Repairers, Commercial and Industrial Equipment 55970
Electrical and Electronics Repairers, Powerhouse, Substation, and Relay 81590
Electrical Engineers 91870
Electrical Power-Line Installers and Repairers 67430
Electricians 60590
Electro-Mechanical Technicians 54700
Electronics Engineers, Except Computer 100610
Elementary School Teachers, Except Special Education 62620
Elevator Installers and Repairers 88340
Embalmers 48770
Emergency Management Directors 79270
Engineering Technicians, Except Drafters, All Other 63250
English Language and Literature Teachers, Postsecondary 81700
Environmental Engineering Technicians 56810
Environmental Engineers 84870
Environmental Science and Protection Technicians, Including Health 45090
Environmental Science Teachers, Postsecondary 92530
Environmental Scientists and Specialists, Including Health 84320
Epidemiologists 85620
Executive Secretaries and Executive Administrative Assistants 55770
Exercise Physiologists 54300
Explosives Workers, Ordnance Handling Experts, and Blasters 62910
Extruding, Forming, Pressing, and Compacting Machine Setters, Operators, and Tenders 38680
Farm and Home Management Advisors 38940
Film and Video Editors 62280
Financial Analysts 85660
Financial Clerks, All Other 44080
Financial Examiners 101500
Financial Managers 142370
Financial Specialists, All Other 87690
Fire Inspectors and Investigators 58590
Firefighters 49620
First-Line Supervisors of Construction Trades and Extraction Workers 82160
First-Line Supervisors of Correctional Officers 84290
First-Line Supervisors of Farming, Fishing, and Forestry Workers 43150
First-Line Supervisors of Fire Fighting and Prevention Workers 91930
First-Line Supervisors of Helpers, Laborers, and Material Movers, Hand 49590
First-Line Supervisors of Landscaping, Lawn Service, and Groundskeeping Workers 54280
First-Line Supervisors of Mechanics, Installers, and Repairers 66430
First-Line Supervisors of Non-Retail Sales Workers 72920
First-Line Supervisors of Office and Administrative Support Workers 58120
First-Line Supervisors of Police and Detectives 101240
First-Line Supervisors of Production and Operating Workers 60990
First-Line Supervisors of Protective Service Workers, All Other 46280
First-Line Supervisors of Transportation and Material-Moving Machine and Vehicle Operators 58250
Fish and Game Wardens 75430
Food Service Managers 51340
Foreign Language and Literature Teachers, Postsecondary 73350
Forensic Science Technicians 79630
Forest and Conservation Technicians 46640
Foresters 65970
Forestry and Conservation Science Teachers, Postsecondary 90080
Fundraisers 57720
Funeral Service Managers 82590
Gaming Supervisors 32220
Gas Compressor and Gas Pumping Station Operators 62720
Gas Plant Operators 70130
General and Operations Managers 124190
Geography Teachers, Postsecondary 82530
Geological and Petroleum Technicians 39180
Geoscientists, Except Hydrologists and Geographers 70730
Health and Safety Engineers, Except Mining Safety Engineers and Inspectors 84880
Health Diagnosing and Treating Practitioners, All Other 67650
Health Educators 41781
Health Specialties Teachers, Postsecondary 136670
Health Technologists and Technicians, All Other 45940
Healthcare Practitioners and Technical Occupations 67470
Healthcare Social Workers 53600
Hearing Aid Specialists 46970
Historians 84337
History Teachers, Postsecondary 88590
Hoist and Winch Operators 80,660
Home Economics Teachers, Postsecondary 74490
Human Resources Managers 112430
Human Resources Specialists 61460
Industrial Engineering Technicians 55460
Industrial Engineers 82720
Industrial Machinery Mechanics 55930
Industrial Production Managers 100480
Information and Record Clerks, All Other 45700
Information Security Analysts 97360
Installation, Maintenance, and Repair Occupations 45990
Instructional Coordinators 66810
Insurance Appraisers, Auto Damage 70380
Insurance Sales Agents 66080
Insurance Underwriters 76990
Interior Designers 62010
Judges, Magistrate Judges, and Magistrates 58140
Kindergarten Teachers, Except Special Education 55850
Labor Relations Specialists 51870
Landscape Architects 68960
Lawyers 140920
Layout Workers, Metal and Plastic 42830
Legal Occupations 82900
Legal Support Workers, All Other 60100
Librarians 56320
Library Science Teachers, Postsecondary 78830
Life Scientists, All Other 82630
Life, Physical, and Social Science Occupations 62840
Loading Machine Operators, Underground Mining 41270
Loan Officers 63040
Locomotive Engineers 71960
Logging Workers, All Other 41940
Logisticians 74600
Magnetic Resonance Imaging Technologists 70580
Management Analysts 92200
Managers, All Other 88600
Marine Engineers and Naval Architects 82410
Market Research Analysts and Marketing Specialists 62380
Marketing Managers 122260
Marriage and Family Therapists 55600
Materials Engineers 91510
Mathematical Science Teachers, Postsecondary 78880
Mechanical Drafters 58540
Mechanical Engineering Technicians 60220
Mechanical Engineers 92040
Media and Communication Equipment Workers, All Other 76540
Medical and Clinical Laboratory Technologists 65770
Medical and Health Services Managers 113030
Medical Equipment Repairers 58310
Meeting, Convention, and Event Planners 52370
Mental Health Counselors 46580
Metal-Refining Furnace Operators and Tenders 44990
Middle School Teachers, Except Special and Career/Technical Education 66630
Millwrights 57190
Mine Cutting and Channeling Machine Operators 46250
Mine Shuttle Car Operators 56930
Mining and Geological Engineers, Including Mining Safety Engineers 93920
Mining Machine Operators, All Other 69160
Mixing and Blending Machine Setters, Operators, and Tenders 41970
Mobile Heavy Equipment Mechanics, Except Engines 58950
Model Makers, Metal and Plastic 57100
Morticians, Undertakers, and Funeral Directors 69800
Multimedia Artists and Animators 59890
Music Directors and Composers 46260
Natural Sciences Managers 113620
Network and Computer Systems Administrators 87700
Nuclear Engineers 121650
Nuclear Medicine Technologists 79440
Nuclear Technicians 88770
Nurse Practitioners 101960
Nursing Instructors and Teachers, Postsecondary 72450
Occupational Health and Safety Specialists 75610
Occupational Health and Safety Technicians 61740
Occupational Therapists 82290
Occupational Therapy Assistants 61860
Operations Research Analysts 90310
Optometrists 111790
Orthotists and Prosthetists 82380
Painters, Transportation Equipment 45230
Paper Goods Machine Setters, Operators, and Tenders 37110
Paralegals and Legal Assistants 56990
Patternmakers, Metal and Plastic 56260
Personal Financial Advisors 121750
Petroleum Pump System Operators, Refinery Operators, and Gaugers 66550
Pharmacists 120280
Philosophy and Religion Teachers, Postsecondary 78010
Physical Therapist Assistants 58720
Physical Therapists 90040
Physician Assistants 104730
Physicists 118520
Physics Teachers, Postsecondary 89040
Plant and System Operators, All Other 56830
Plumbers, Pipefitters, and Steamfitters 77570
Podiatrists 195730
Police and Sheriff’s Patrol Officers 74870
Political Science Teachers, Postsecondary 90250
Postal Service Clerks 49310
Postal Service Mail Carriers 50160
Postal Service Mail Sorters, Processors, and Processing Machine Operators 49820
Postmasters and Mail Superintendents 75620
Power Distributors and Dispatchers 84830
Power Plant Operators 79100
Precision Instrument and Equipment Repairers, All Other 64170
Private Detectives and Investigators 58290
Probation Officers and Correctional Treatment Specialists 64300
Producers and Directors 75970
Production, Planning, and Expediting Clerks 48390
Property, Real Estate, and Community Association Managers 66710
Psychologists, All Other 79010
Psychology Teachers, Postsecondary 89680
Public Relations and Fundraising Managers 115180
Public Relations Specialists 63620
Pump Operators, Except Wellhead Pumpers 51520
Purchasing Agents, Except Wholesale, Retail, and Farm Products 61760
Purchasing Managers 111380
Radiation Therapists 84640
Radio, Cellular, and Tower Equipment Installers and Repairers 49240
Radiologic Technologists 63420
Rail Yard Engineers, Dinkey Operators, and Hostlers 54790
Railroad Conductors and Yardmasters 65740
Rail-Track Laying and Maintenance Equipment Operators 54600
Real Estate Brokers 88750
Real Estate Sales Agents 59010
Recreation and Fitness Studies Teachers, Postsecondary 60080
Recreational Vehicle Service Technicians 34450
Refractory Materials Repairers, Except Brickmasons 49210
Registered Nurses 71730
Reinforcing Iron and Rebar Workers 86290
Respiratory Therapists 56910
Rolling Machine Setters, Operators, and Tenders, Metal and Plastic 38060
Roof Bolters, Mining 58900
Rotary Drill Operators, Oil and Gas 49720
Sales Engineers 98760
Sales Managers 75432
Sales Representatives, Services, All Other 61930
Sales Representatives, Wholesale and Manufacturing, Except Technical and Scientific Products 69900
Sales Representatives, Wholesale and Manufacturing, Technical and Scientific Products 81950
Secondary School Teachers, Except Special and Career/Technical Education 68380
Securities, Commodities, and Financial Services Sales Agents 86070
Service Unit Operators, Oil, Gas, and Mining 42200
Set and Exhibit Designers 54620
Ship Engineers 57066
Signal and Track Switch Repairers 38120
Social and Community Service Managers 63870
Social Scientists and Related Workers, All Other 79960
Social Work Teachers, Postsecondary 54580
Social Workers, All Other 65890
Sociology Teachers, Postsecondary 87710
Software Developers, Applications 96110
Software Developers, Systems Software 106700
Soil and Plant Scientists 57080
Sound Engineering Technicians 58660
Special Education Teachers, All Other 59400
Special Education Teachers, Kindergarten and Elementary School 65430
Special Education Teachers, Middle School 62160
Special Education Teachers, Secondary School 68560
Speech-Language Pathologists 78760
Stationary Engineers and Boiler Operators 79090
Statisticians 88190
Surveyors 60215
Tank Car, Truck, and Ship Loaders 45470
Tax Examiners and Collectors, and Revenue Agents 79850
Technical Writers 67410
Telecommunications Equipment Installers and Repairers, Except Line Installers 57580
Tire Builders 42500
Tool and Die Makers 54680
Training and Development Managers 101500
Training and Development Specialists 59910
Transportation Inspectors 86790
Transportation, Storage, and Distribution Managers 93250
Urban and Regional Planners 79510
Veterinarians 93830
Water and Wastewater Treatment Plant and System Operators 54560
Web Developers 57450
Wholesale and Retail Buyers, Except Farm Products 55080
Writers and Authors 53050
Zoologists and Wildlife Biologists 62420
Question 1
1. Describe the 8 steps in the process for hypothesis testing. Include an explanation of the decision criteria for rejecting the null hypothesis for both the p-value method and the critical value method.
Question 2
Calculations/Values Formulas/Answers
Mean (x-bar)
Standard Deviation
n
mu
Test Statistic
Critical Value
P-value
2a. Write the null and alternative hypotheses symbolically and identify which hypothesis is the claim.Then identify if the test is left-tailed, right-tailed, or two-tailed and explain why.
2b. Identify and explain which test statistic you will use for your hypothesis test: z or t?Find the value of the test statistic.
Provide your calculations in the cells designated to the right. Explain your answers below.
2c. What is the critical value?Describe the rejection region of this hypothesis test.
Provide your calculations in the cells designated to the right. Explain your answers below.
2d. Using the critical value approach, should you reject the null hypothesis or not reject the null hypothesis?Explain. After making your decision, restate it in non-technical terms and make a conclusion about the original claim.
2e. Calculate the p-value for this hypothesis test, and state the hypothesis conclusion based on the p-value.Does this match your results from the critical value method?
Provide your calculations in the cells designated to the right. Explain your answers below.
Question 3
Calculations/Values Formulas/Answers
Mean (x-bar)
Standard Deviation
n
mu
Test Statistic
Critical Value
P-value
3a. Write the null and alternative hypotheses symbolically and identify which hypothesis is the claim.Then identify if the test is left-tailed, right-tailed, or two-tailed and explain why.
3b. Identify and explain which test statistic you will use for your hypothesis test: z or t?Find the value of the test statistic.
Provide your calculations in the cells designated to the right. Explain your answers below.
3c. What is the critical value?Describe the rejection region of this hypothesis test.
Provide your calculations in the cells designated to the right. Explain your answers below.
3d. Using the critical value approach, should you reject the null hypothesis or not reject the null hypothesis?Explain. After making your decision, restate it in non-technical terms and make a conclusion about the original claim.
3e. Calculate the p-value for this hypothesis test, and state the hypothesis conclusion based on the p-value.Does this match your results from the critical value method?
Provide your calculations in the cells designated to the right. Explain your answers below.

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