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Calculate the z-score for a sample mean of 105

Calculate the z-score for a sample mean of 105

Math   Statistics-And-Probability   
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Answer #1

we know that if x is normally distributed with mean and standard deviation then

the sample mean will be normally distributed with   and standard deviation   

we can find z score for sample mean by the formula

z =

by putting = 105 and other values in this formula we can find z score

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