Question

Comparison of two energy drinks. Consider the following study to compare two popular energy drinks. For...

  1. Comparison of two energy drinks. Consider the following study to compare two popular energy drinks. For each subject, a coin was flipped to determine which drink to rate first. Each drink was rated on a 0 to 100 scale, with 100 being the highest rating.

Subject

Drink

1

2

3

4

5

A

48

90

83

96

93

B

49

78

66

88

71
  1. Is there a difference in preference? State the appropriate hypotheses.

  1. Carry out a matched pairs t-test for these data, i.e. determine the test statistic, P-value, and interpretation of results.

  1. For the company producing Drink A, the real question is how much difference there is between the two preferences. Give and interpret a 95% confidence interval for the difference in preference between Drink A and Drink B.

Math   Statistics-And-Probability   
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