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12 September, 21:14

Two samples, each with n=5 scores, have a pooled variance of 40. What is the estimated standard error for the sample mean difference

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  1. 13 September, 00:52
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    Estimated standard error for the sample mean difference = 17.93

    Step-by-step explanation:

    Given data,

    n=5

    variance, σ = 40

    Standard error = σ / sqrt (n)

    = 40 / sqrt (5)

    = 40/2.23

    =17.93

    Estimated standard error for the sample mean difference = 17.93
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