Refer to the analysis of shoppers in Exercise 45.
(a) If several of those participating in the loyalty program are members of the same family, would this cause you to question the assumptions that underlie the test in this question?
(b) Several outliers were observed in the data for the loyalty program. Should these high-volume purchases be excluded?

Transcribed Image Text:

Microsot Excel 40 35 30 25 20 10 15 13 10 5 12.5 37.5 62.5 87.5 1125 137.5 1625 187.5 212.5 Amount Spent 17 19