Suppose that you have the sample of n1 = 8, with the sample mean X1 = 42, and a sample standard deviation S1 = 4, and you've an independent sample of n2 = 15 from another population with the sample mean of X2 = 34 and sample standard deviation S2 = 5.
a. Determine the value of the pooled-variance tSTAT test statistic for testing H0: m1 = m2?