Extending the Concepts and Skills Suppose that the variable under consideration is normally distributed on each of two populations and that the population standard deviations are equal. Further...

Extending the Concepts and Skills
Suppose that the variable under consideration is normally distributed on each of two populations and that the population standard deviations are equal. Further suppose that you want to perform a hypothesis test to decide whether the populations have different means, that is, whether μ1=μ2. If independent simple random samples are used, identify two hypothesis-testing procedures that you can use to carry out the hypothesis test.