Answer Happy

The null and alternate hypotheses are: Ho: Hi-H2 A rondom sample of 11 observations from one population revealed a sample mean of 23 and a sample standard deviation of 46, A random sample of 8 observations from another population revealed a sample mean of 28 and a sample standard deviation of 3.6 At the 0.05 significance level, is there a difference between the population means? a. State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answer to 3 decimal places.) The decision rule is to reject M6 MI OF

b. Compute the pooled estimate of the population variance. Round your answer to 3 decimal places) Pocitost of the population variance c. Compute the test stotine (Negative amount should be indicated by a minus sign. Round your answer to 7 decimal acess