Question: Assume that both populations are normally distributed. a) Test whether 12 at the =0.05 level of significance for the given sample data. b) Construct a

Assume that both populations are normally distributed.

a) Test whether 12 at the =0.05 level of significance for the given sample data.

b) Construct a 95% confidence interval about 12.

Sample 1

n

16

x

10.5

s

2.9

Sample 2

n

16

x

8.1

s

1.7

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