Consider a population with mean = 43 and sd = 5.2. Calculate the x-score for an sample mean of 46.5 from a sample of size 35.

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  1. Do you mean Z score?

    Z = (sample mean - pop. mean)/standard error (SE) of difference between means

    SEdiff = √(SEmean1^2 + SEmean2^2)

    SEm = SD/√(n-1)

    If only one SD is provided, you can use just that to determine SEdiff.

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  2. mean = 5.2 sd= 1.6 find standard deviation of sample

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