The following data show the number of calories per serving of strawberry yogurt and vanilla yogurt for each of 12 brands of yogurt. We want to use this data to determine if the mean for strawberry is different than the mean for vanilla.

A) What are the null and alternative hypothesis?

B) Calculate the test statistic.

(Please round your answer to 2 decimals.)

C) At significance level 0.05, what is the critical value for this test?

D) Do we reject the null hypothesis?

E) As a result of this hypothesis test, do we conclude that strawberry and vanilla yogurt have different mean calories per serving?