# T test for the comparing two population means

A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial they wish to determine whether there is a difference between the effectiveness for women and for men. At a=5, what is the test value?

................................Women..........Men

Sample Size................50................80

Mean Effect..................7...............6.95

Sample variance..........3..................4

https://brainmass.com/statistics/students-t-test/t-test-comparing-population-means-334786

#### Solution Summary

This solution is comprised of a step-by-step method for computing test statistic for independent sample t test.

$2.19