This question: 5 point(s) possible Submit test Assume that you have a sample of n, =9, with the sample mean X, =50, and a sample standard deviation of S, = 6, and you have an independent sample of n2 = 16 from another population with a sample mean of X2 = 35 and the sample standard deviation S2 = 5. Complete parts (a) through (d) below. a. What is the value of the pooled-variance tSTAT test statistic for testing Ho: Hy = 12? (STAT = (Round to two decimal places as needed.) b. In finding the critical value, how many degrees of freedom are there? degrees of freedom (Simplify your answer.) . Using a significance level of a = 0.1, what is the critical value for a one-tail test of the hypothesis Ho: Hy S H2 against the alternative H, : Hy > H2? The critical value is (Round to two decimal places as needed.) d. What is your statistical decision? A. Reject H because the computed tSTAT test statistic is less than the upper-tail critical value. B. Do not reject Ho because the computed tSTAT test statistic is less than the upper-tail critical value. C. Do not reject Ho because the computed tSTAT test statistic is greater than the upper-tail critical value. D. Reject Ho because the computed tSTAT test statistic is greater than the upper-tail critical value. Time Remaining: 01:48:18 Next DI 512 O F11