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A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part...

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 men. What is the test value?

women . men

sample size 40 70

mean effect 9 9.15

sample variance . 2.5 3

answer choices:

a)0.32

b)-2.16

c)-1.42

d)-0.46

Math   Statistics-And-Probability   
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