Assume that you have a sample of n1 = 7?, with the sample mean x¯1 = 45?, and a sample standard deviation of Upper S1 = 5?, and you have an independent sample of n2=4 from another population with a sample mean of Upper x¯2 = 38 and the sample standard deviation Upper S2 = 6. Assuming the population variances are? equal, at the 0.01 level of? significance, is there evidence that μ1>μ2??
Find the test statistic.
tSTAT =
?(Round to two decimal places as? needed.)