Last year the average daily change in the Dow Jones Industrial Index was 7.3

points.A random sample of 15 trading days this year showed the average

29)______________change to be 5.6 points with standard deviation 10.2.Test the claim that the

average change in the index is less this year than it was last year. 28)List the

30)______________p-value29)Have we proven that the change is significant? (yes or no)

30)what type of error could be made with the type of conclusion drawn from

the results of this study?