Explore BrainMass

Explore BrainMass

    Hypothesis testing :F test for Variance

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

    The mean age of 25 randomly selected college seniors was found to be 23.5 years, and the standard deviation of all college seniors was 1.3 years. Which of the following is the correct symbol for 1.3 years?
    A. u B. s C. o D.

    A researcher wishes to compare two different groups of students with respect to their mean time to complete a particular task. The time required is determined for each group. The data summary is given below. Test the claim at a = 0.05, that there is no difference in variance. Give the critical region, test statistic value, and conclusion for the F test.
    n1=100, s1=20
    n2=120, s2=34

    © BrainMass Inc. brainmass.com June 3, 2020, 9:06 pm ad1c9bdddf
    https://brainmass.com/statistics/f-test/hypothesis-testing-test-variance-165946

    Solution Summary

    Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.

    $2.19

    ADVERTISEMENT