Question

Assume that you have a sample of n 1-7, with the sample mean X1-43, and a sample standard deviation of S1-4, and you have an independent sample of n2-13 from another population with a sample mean of x2 39 and the sample standard deviation S2-7. Complete parts (a) through (d). Click here for page 1 of critical values oft. Click here for page 2 of critical values of t. a. What is the value of the pooled-variance ISTAT test statistic for testing Ho: μ,-μ2? STAT- (Type an integer or a decimal rounded to four decimal places as needed.) b. In finding the critical value t/2.how many degrees of freedom are there? degrees of freedom c. using a significance evel of α=0 25, what is the critical value for a one-la l test of the hypothesis Ho μι The critical value is Type an integer or a decimal rounded to four decimal places as needed.) d. What is your statistical decision? μ2 against the alternative H1 : μ 1 2H2? OA. Reject Ho because the computed Ttest statistic is less than the upper-tail critical value. B. Reject Ho because the computed tSTAT test statistic is greater than the upper-tail critical value 0 C. Do not reject Ho because the computed tSTAT test statistic is greater than the upper-tail critical value. O D. Do not reject Ho because the computed STAT test statistic is less than the upper-tail crtical value

Answer 1

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