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    Important information about Two Sample T test for testing the Hypothesis of Means

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    n = 17
    M = 34.4
    s = 4.0

    n = 19
    M = 31.9
    s = 3.5

    Use a single sample t test to determine whether sample 1 is significantly above the average of 30/kg/m2.
    One tailed test with a = .01

    Also,
    What does this mean in words:
    t(18) = 4.00, p = .001, d = 1.79

    When you have s (M1 - M2), does that mean the s gets multiplied by (M1 - M2)?

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    n = 17
    M = 34.4
    s = 4.0

    Use a single sample t test to determine whether sample 1 is significantly above the average of 30/kg/m2. one tailed test with a = .01
    For First Sample:
    Solution:
    Null Hypothesis (Ho): µ = 30
    Alternative Hypothesis (Ha): µ > 30 (One tailed test)
    Level of Significance (α) = .01
    The critical value of t distribution at .01 with n-1 = 17-1=16 degree of freedom is given as 2.583
    Test statistics is given by
    The test statistic is a t-score (t) defined by the following equation.
    t = (M - μ) / SE
    Where M is the sample mean, μ is the hypothesized ...

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