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    Question about Independent sample t test for mean

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    In testing the equality of the two means below, what is the test statistic? (Use the unequal variances formula).
    Sample 1 Sample 2
    Sample size 9 12
    Sample mean 80 115
    Sample variance 550 100

    A) -4.20 B) -2.31 C) -0.18 D) -0.50

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    https://brainmass.com/statistics/students-t-test/question-independent-sample-t-test-mean-236254

    Solution Summary

    The solution provides step by step method for the calculation of independent sample t test for mean under unequal variance assumption. Formula for the calculation and Interpretations of the results are also included.

    $2.19

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