In Problems, assume that the populations are normally distributed. (a) Test whether 1 2
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In Problems, assume that the populations are normally distributed.
(a) Test whether μ1 ≠ μ2 at the α = 0.05 level of significance for the given sample data.
(b) Construct a 95% confidence interval about μ1 - μ2.
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n x S Sample 1 20 111 8.6 Sample 2 20 104 9.2
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a H 0 1 2 H 1 1 2 The level of significance is 005 Since the sample size of both groups is 20 we use ...View the full answer
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