(2 points) Suppose you needed to test the claim that the two samples described below come from populations with the same mean. Assume th the samples are independent simple random samples from normal populations with difference variances. Sample 1: m1 = 3, I1 = 26.5, $1 = 3.95 Sample 2: n2 = 5, 12 = 30, $2 = 8.55 Find a) The estimated degree of freedom is b) The test statistic is (use Sample 1 - Sample 2) Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times COLOUO . R A CO E