A study is done to compare the preference between two popular energy drinks. Each subject

rates both drinks, but the order in which they drink and rate the beverages is randomly chosen. The drinks are rated on a scale of 0 to 100, with 100 being the highest rating. Here is the data:

Subject 1 2 3 4 5 6 7 8

Drink A 43 83 66 89 78 65 72 55

Drink B 45 78 64 79 71 62 66 50

Is there a difference in the preference of one drink over the other? Conduct a test of significance at the 5% level. State your hypotheses, give the correct test statistic and

the corresponding P-value, and state your conclusion. Additionally check that this test meets the conditions required to use these procedures.