7,2

Assume that you have a sample of n, =9, with the sample mean X, = 43, and a sample standard deviation of S, = 7, and you have an independent sample of ny = 17 from another population with a sample mean of X2 = 35 and the sample standard deviation S2 = 8. Complete parts (a) through (d) below. a. What is the value of the pooled-variance tSTAT test statistic for testing Ho: H1 = 12? ISTAT (Round to two decimal places as needed.)