Refer to Exercise 10.73. For each of the four levels of frequency of purchase, compute the proportion of customers in each of the four adequacy of selection categories. Describe the trends in the proportions across the adequacy of selection categories. What differences do you see in the four trends?
In exercise

Transcribed Image Text:

Adequacy of Selectiorn Frequency of Purchases Por Avrage Good Excellent 37 30 16 28 19 4 or more 12