Construct and interpret an interaction plot for the data in Exercise 15.

Exercise 15

An education professor wants to find out which subject students find most difficult. She obtains final exam scores for three randomly selected freshmen and three randomly selected sophomores from three subjects, statistics, psychology, and history. The results are as follows.

Transcribed Image Text:

Freshmen Statistics Psychology 76 88 72 69 84 75 Sophomores 82 99 80 85 97 87 History 77 87 76 85 96 90