Assume that the populations are normally distributed and that independent
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.