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,which of the following is true?
A)The day of the week would be considered the blocking factor in the study.
B)There are six treatments.
C)This is a balanced design since the number of rows and columns is equal.
D)All of the above are true.

Question

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,which of the following is true?
A)The day of the week would be considered the blocking factor in the study. 
B)There are six treatments. 
C)This is a balanced design since the number of rows and columns is equal. 
D)All of the above are true.

Quizplus · Accepted Answer

The day of the week is what is being blocked, as the number of customers is being counted based on whether it was a Saturday, Sunday, or weekday. This means that the blocking factor is the day of the week. Therefore, only option (A) is true. Option (B) is false since there are only three treatments (Saturday, Sunday, and weekday), and option (C) is also false, as the design is unbalanced since there are different numbers of observations for each treatment.

Recently,a Department Store Chain Was Interested in Determining If There