Question: #4) Chapin Manufacturing 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 work on various shifts. A sample of five workers is selected and their output recorded on each shift. At the .05 significance level, can we conclude:

a. That there is a difference in the mean production rate by shift?

b. That there is a difference in the mean production rate by employee?

SHIFT

Employee Day Afternoon Night

Skaff 31 25 35

Lurn 33 26 33

Clark 28 24 30

Treece 30 29 28

Morgan 28 26 27

For each of parts a) and b) above, justify your answer by referring to the appropriate information in the Excel output.