# Question

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

signiﬁcance.

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

difference md.

(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

signiﬁcance.

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

difference md.

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