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A normal population has a mean of 57 and a standard deviation of 13. You select a random sample of 9. Compute the probability that the sample mean is: (Round your z values to 2 decimal places and final
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A normal population has a mean of 57 and a standard deviation of 13. You select a random sample of 9. Compute the probability that the sample mean is: (Round your z values to 2 decimal places and final answers to 4 decimal places):

User Iehrlich
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Yes that’s correct I think
User Canuk
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