Assume that you have a sample of n1= 9 with the sample mean X1 = 50, and a sample standard deviation of S1 = 7, and you have an independent sample of n2 = 13 from another population with a sample mean of X2 = 32 and the sample standard deviation S2 = 8.
what is the value of the pooled-variance tSTAT test statistic for testing H0:μ1=μ2?