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Find the test statistic value for two mean tests in large sample.

A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to find out whether there is a difference between the effectiveness for women and for men. At α = .05, what is the test value?

	Women	Men
Sample size	40	70
Mean effect	7	6.75
Sample variance	2.5	4.5

a. 0.70

b. 1.97

c. 0.36

d. 1.42

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M922073

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