Explore BrainMass

Explore BrainMass

    Testing of hypothesis

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    2. Two groups, A and B, consist of 100 people each who have a disease. A serum is given to group A but not to group B (which is called the control group); otherwise, the two groups are treated identically. It is found that in groups A and B, 75 and 65 people respectively, recover from the disease.
    a. At a significance level of a = 0.01, test the hypothesis that the serum helps cure the disease.
    b. Now assume that each of the groups consists of 300 people, respectively, and that 225 people in group A and 195 people in group B are cured (the same proportion of cured patients as in part a). At a significance level of a = 0.01, again test the hypothesis that the serum helps cure the disease.
    c. Are your results consistent in parts a and b?

    © BrainMass Inc. brainmass.com June 3, 2020, 7:01 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/testing-of-hypothesis-83343

    Attachments

    Solution Summary

    We use testing of hypothesis to test if the serum helps to cure the disease.

    $2.19

    ADVERTISEMENT