# Question: Assume that the populations are normally distributed and that independent

Assume that the populations are normally distributed and that independent sampling occurred.

(a) Test the hypothesis that µ1 ≠ µ2 at the α = 0.1 level of

signiﬁcance for the given sample data.

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

(a) Test the hypothesis that µ1 ≠ µ2 at the α = 0.1 level of

signiﬁcance for the given sample data.

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

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