Examine the following data. Assume the variances for the two populations are 22.74 and 26.65, respectively.

a. Use the data to test the following hypotheses (α = .02).

H0: µ1 - µ2 = 0Ha: µ1 - µ2 ≠ 0

b. Construct a 98% confidence interval to estimate the difference in population means using these data. How does your result validate the decision you reached in part (a)?

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