Use the given statistics to complete parts (a) and (b). Assume that the populations are normally distributed.
(a) Test whether
mu 1μ1greater than>mu 2μ2
at the
alphaαequals=0.01
level of significance for the given sample data.(b) Construct a
99%
confidence interval about
mu 1μ1minus−mu 2μ2.



Population 1

Population 2



n

24

25


x overbarx

50.8

45.9


s

4.3

11.4

The provided information are:
(a)
The null and alternative hypotheses are:
Hence, the correct option is (E).
The alternative hypothesis suggests that the t...
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