A sample of 44 observations is selected from one population with a population standard deviation of 3.8. The sample mean is 101.0. A sample of 56 observations is selected from a second population with a population standard deviation of 4.0. The sample mean is 99.4. Conduct the following test of hypothesis using the 0.10 significance level. H0 : ?1 = ?2 H1 : ?1 ? ?2
(A) What is the p-value?
(B) Compute the value of the test statistic.
(C) State the decision rule.