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26 October, 11:38

A sample of n = 100 scores is selected from a population with mu = 80 with sigma = 20. On average, how much error is expected between the sample mean and the population mean?

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  1. 26 October, 12:35
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    Step-by-step explanation:

    s = σ / √n

    s = 20 / √100

    s = 2
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