Item 3 Exc. 3

Chapin Manufacturing Company operates 24 hours a day, 5 days a week. The workers rotate shifts each week. Management is interested in whether there is a difference in the number of units produced when the employees worked on various shifts . A sample of five workers is selected and their output recorded on each shift. At the 0.05 significance level, can we conclude there is a difference in the mean production rate by shift or by employee?

Units Produced

Employee	Day	Afternoon	Night
Skaff	31	25	35
Lum	33	26	33
Clark	28	24	30
Treece	30	29	28
Morgan	28	26	27

a. The Null Hypothesis

________

b. The Alternate Hypothesis

________

c. The significance level of the test

________

d. Pvalue

________

e Decision based upon test data

I Reject the Null Hypothesis ii. Do not reject the Null Hypothesis

iii Insufficient Information to make a decision.

________

1. Decision based upon the data in the words of the question.
2. Complete the ANOVA Table

Source of Variation	SS	df	MS	F	Pvalue
Treatments (Between Treatments}
Blocks (Between Blocks)
Error (Within Groups)
Total

Enter answers to two decimal places except for the pvalue witch should be entered to four 4 decimal places.

1. Is there a difference in the performance levels of the five workers?

_______

1. Does including the performance levels of the workers in the analysis affect the study decision? On what basis did you make your decision?

Item 4 Exc 4

There are three hospitals in the Tulsa Oklahoma area. The following data shows the number of outpatient surgeries on Monday, Tuesday, Wednesday, Thursday, and Friday at each hospital last week. At the 0.05 significant level, can we conclude there is difference in the mean number of surgeries performed by hospital or by the day of the week?

Level of Physical Fitness

Day	St Lukes	St Vincent	Mercy
Monday	14	18	24
Tuesday	20	24	14
Wednesday	16	22	14
Thursday	18	20	22
Friday	20	28	24

a. The Null Hypothesis

_____

b. The Alternate Hypothesis

_____

1. The significance level of the test

_____

1. Pvalue

_____

1. Decision based upon test data.

1. Reject the Null Hypothesis ii. Do not reject the Null Hypothesis
2. Insufficient Information to decide.

_____

1. Decision based upon the data in the words of the question.

1. Complete the ANOVA Table

Source of Variation	SS	df	MS	F	Pvalue
Treatments (Between Treatments}
Blocks (Between Blocks
Error (Within Groups)
Total

Enter answers to two decimal places except for the pvalue witch should be entered to four 4 decimal places.

1. Is there a difference in the outpatient surgeries based upon the day of the week?

_______

1. Does including the days of the week data affect the study decision? On what basis did you make your decision?

_______