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    Test of Hypothesis

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    Ho:u1-u2 = 0
    Ha:u1-u2 does not equal 0

    The following results are for two independent samples taken from the two populations.

    Sample 1

    N1 = 80
    x1 = 104
    o1 = 8.4

    Sample 2

    N2 = 70
    x2 = 106
    o2 = 7.6

    1. What is the value of the test statistic?
    2. What is the p-value
    3. With a=.05, what is your conclusion, reject or accept?

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    https://brainmass.com/statistics/hypothesis-testing/test-of-hypothesis-171721

    Solution Preview

    Solution:

    The test statistic is

    Z = (x1-x2)/√(1²/n1)+(2²/n2)

    Z = ( 104 - 106)/ ...

    $2.19

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