You wish to test if there is a difference in the final exam scores from this year's class

and last year's class, that is

Ho:1 -2 = 0 Ha: 1 -2 0 where 1 represents the mean score of last year's exam and 2 represents the mean score

from this year's exam. When the data were analyzed, you came up with the following

confidence interval: (2, 16). What can you conclude given this 95% confidence interval?

(A)Ho would not be rejected and we would conclude that the difference between the

two classes was statistically significant.

(B)Ho would be rejected and we would conclude that the differences between the two

classes was statistically significant.

(C)Ho would be rejected and we would conclude that the differences between the two

classes was not statistically significant.

(D) the mean difference between the two population scores must be 9.