Question: Assume that the paired differences come from a population that is normally distributed. (a) Compute di = Xi - Yi for each pair of data.

Assume that the paired differences come from a population that is normally distributed.

(a) Compute di = Xi - Yi for each pair of data.

(b) Compute d and sd.

(c) Test the hypothesis that md 6 0 at the a = 0.05 level of signficance.

(d) Compute a 98% confidence interval for the population mean difference md.

Observation 1 Xi 2 3 45 6 34.2 32.1 39.5 41.8 45.1 38.4 34.9 31.5 39.5 41.9 45.5 38.8

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