Question

In testing the equality if the two means below, what is the test statistic? (Assume the populations have equal variances)

Hi! I entered this into the calculator and got an answer that didn't match any of my options. I got 0.1285. Can someone please show me how to enter it into the calculator?

QUESTION 5 In testing the equality of the two means below, what is the test statistic? (Assume the populations have equal variances) Sample 1 Sample 2 Sample size 13 Sample mean 115 80 Sample variance 700 500 3.24 O 1.40 O 0.30 O 2.31

Answer 1

Here in 2 - samp TTest , SX1 and SX2 are sample standard deviations

So put SX1 = $\large \sqrt$ 700 and SX2 = $\large \sqrt$ 500

You will get t = 3.24