Explore BrainMass

Explore BrainMass

    F test for comparing means

    Not what you're looking for? Search our solutions OR ask your own Custom question.

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

    1. Test the claim that the samples come from populations with the same mean. Assume that the populations are normally distributed with the same variance.

    Given the sample data below, test the claim that the populations have the same mean. Use a significance level of 0.05. (See formated table attached).

    Brand A Brand B Brand C
    n = 10 n = 10 n = 10
    x-bar = 32.4 x-bar = 32.0 x-bar = 27.2
    s2 = 4.12 s2 = 3.06 s2 = 4.88

    Find the test statistic F. Use three decimal places.

    © BrainMass Inc. brainmass.com December 15, 2022, 6:14 pm ad1c9bdddf


    Solution Summary

    The solution gives the details of comparison of means of 3 sets of observations given the size, sample mean and sample standard deviation. Step by step procedure is given with interpretations of the results obtained.