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    Independent sample t test

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    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 = .05, what is the value the test statistic?
    Women Men
    Sample size 50 80
    Mean effect 7 6.95
    Sample S.D.s 3 4

    A. t = 3.252
    B. z = 0.455
    C. z = 0.081
    D. z = 0.151

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    Solution Summary

    The solution provides step by step method for the calculation of test statistic for two populations . Formula for the calculation and Interpretations of the results are also included.