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Statistics

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For a population with a mean of (mew) = 50 and a standard deviation of 10, how much error, on average, would you expect between the sample mean (M) and the poulation mean for:
a) a sample of n=4 scores
b) a sample of n=16 scores
c) a sample of n=25 scores

Are the sample mean (M) and population means different? How do you find M? I don't understand this question...Please help me!

  • math -

    The inequality for the graph can be expressed as

    32 ≤ r ≤ m

    where r is the minimum range of the scores in any of the games and m is the maximum range.

    What is the value of m?

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