### Test statistic value-mean tests in large sample

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##### Reference no: EM1321623

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 determine 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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