Question: 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 & for men. At α = .05, Calculate the value the test statistic?
|
Women
|
Men
|
Sample size
|
50
|
80
|
Mean effect
|
7
|
6.95
|
Sample variance
|
3
|
4
|
[A] z = 0.081
[B] z = 0.151
[C] t = 3.252
[D] z = 0.455