The null and alternate hypotheses are:

Ho:Mean 1 is equal to Mean 2

H1:Mean 1 is not equal to Mean 2

A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12.A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15.At the .05 significance level, is there a difference in the population means?

a.State the decision rule, reject if?

b.Compute the pooled estimate of the population variance

c.Compute the test statistic, t obtained.

d.State your decision about the null hypothesis.