Question: Assume that the populations are normally distributed. (a) Test whether 1 2 at the a = 0.05 level of signicance for the given sample

Assume that the populations are normally distributed.

(a) Test whether µ1 ‰  µ2 at the a = 0.05 level of significance for the given sample data.

(b) Construct a 95% confidence interval about µ1 - µ2.

Assume that the populations are normally distributed. (a) Test whether µ1

Population 1 20 Population 2 20 104 8.6 9.2

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a H 0 1 2 versus H 1 1 2 The level of significance is 005 Since the sample size of both groups is 20 ... View full answer

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