# What is the z-score of sample X, if #n = 49, mu= 15, SD =35, and E[X] =38#?

##### 1 Answer

Dec 20, 2016

The answer is

#### Explanation:

The z-score for a sample mean is

Therefore,

Dec 20, 2016

The answer is

The z-score for a sample mean is

Therefore,

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