Construct a 95% confidence interval on the mean difference in the scores for the two classes in Exercise 1. Exercise 1 Two sections of a class in statistics were taught by two different methods....

Construct a 95% confidence interval on the mean difference in the scores for the two classes in Exercise 1.

Exercise 1

Two sections of a class in statistics were taught by two different methods. Students’ scores on a standardized test are shown in Table 5.13. Do the results present evidence of a difference in the effectiveness of the two methods? (Use α = 0:05.)