Recently, a Department Store Chain Was Interested in Determining If

Multiple Choice

Recently, a department store chain was interested in determining if there was a difference in the mean number of customers who enter the three stores in Seattle. The analysts set up a study in which the number of people entering the stores was counted depending on whether the day of the week was Saturday, Sunday, or a weekday. The following data were collected: Given this format, what is the null hypothesis for testing whether blocking is effective?

A)
B)
C) Not all means are equal.
D)