Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis test for mean difference of number of absences  

Lester Hollar is vice president for human resources for a large manufacturing company. In recent years he has noticed an increase in absenteeism that he thinks is related to general health of the employees. Four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. To estimate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the last six months. Below are the results. At the 0.05 significance level, can he conclude that the number of absences has declined? Estimate the p-value.  

Employee

Before

After

1

6

5

2

6

2

3

7

1

4

7

3

5

4

3

6

3

6

7

5

3

8

6

7

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918177

Have any Question? 


Related Questions in Statistics and Probability

Explain how the picture below helps us understand

Explain how the picture below helps us understand Christianity. Who were the thinkers that used these philosophers to understand their faith?

A buyer suspects that the factorys claimed life of mean is

A buyer suspects that the factory's claimed life of mean is 3000 hours for these light balls are too high. To check the claim, the factory tests 50 of these light balls and gets a mean lifetime of sample mean = 2988 hour ...

Best ribs wishes to pay off a debt of 40000 in 7 years what

Best Ribs wishes to pay off a debt of $40,000 in 7 years. What amortization payment would they need to make each six months, at 6% interest compounded semiannually? (Use Table 12-2 from your text) $3,541.05 $3,910.63 $2, ...

Prove that if the result of the mens courtship algorithm

Prove that if the result of the men's courtship algorithm yields the same result as the women's courtship algorithm, then this resulting matching is the unique stable matching.

An alternative to the experiment in q3 to investigate

An alternative to the experiment in Q.3 to investigate whether loud music tends to increase the time it takes mice to complete a maze would involve randomly assigning say, 50 mice to two groups. The 25 mice in Group A (c ...

Consider the following gameyou pay 100 and a fair 6-sided

Consider the following game. You pay $1.00 and a fair 6-sided die is rolled. If the roll is 1 or 3, then you get your dollar back and the game ends. If the roll is 5, you get $2.00 back (your dollar plus an additional do ...

1 gender was life better for women during the middle ages

1. GENDER Was life better for women during the Middle Ages than in past ages? What major events had an impact on their daily life? What role did magic play in the Middle Ages and how did it affect women? How were older w ...

A bakery was taken to court for selling loaves of bread

A bakery was taken to court for selling loaves of bread that were underweight. These loaveswere advertised as weighing 24 ounces. In its defense, the bakery claimed that the advertisedweight was meant to imply not that e ...

Among the best companies to work for in the us 33

Among the best companies to work for in the US, 33% experienced double digit job growth, 49% experienced single digit growth, and 18% experienced no growth or decline. A closer examination of the 30 companies that make u ...

Case study mikhail gorbachevs 1988 un speechif the pace of

Case Study: Mikhail Gorbachev's 1988 UN SpeechIf the pace of improving US-Soviet relations seemed rapid, Mikhail Gorbachev's speech to the United Nations General Assembly would shift the process into overdrive.  In this ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro