# Question

Assume that the populations are normally distributed.

(a) Test whether µ1 > µ2 at the α = 0.1 level of signiﬁcance for the given sample data.

(b) Construct a 90% conﬁdence interval about µ1 - µ2

(a) Test whether µ1 > µ2 at the α = 0.1 level of signiﬁcance for the given sample data.

(b) Construct a 90% conﬁdence interval about µ1 - µ2

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