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 work on various shifts. A sample of five workers is selected and their output recorded on each shift. At the 0.01 significance level, can we conclude there is a difference in the mean production rate by shift or by employee? Units Produced Employee Skaff Day Afternoon 31 23 Night 32 Lum 37 24 39 Clark 34 28 21 Treece 34 26 25 Morgan 23 21 38 picture Click here for the Excel Data File Required: a-1. Which of the following is the null hypothesis for the treatments? > Hoay HAfternoon Night Hoay HAfternoon Night Poay HAfternoon Night