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Assume the mean of 200 mg/dL and a standard deviation of 10 mg/dL of the cholesterol...

Assume the mean of 200 mg/dL and a standard deviation of 10 mg/dL of the cholesterol levels of the general public are known without error. What is the standard deviation of the sampling distribution for random samples of size n = 7 of people in the general public?

Math   Statistics-And-Probability   
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Answer #1

Solution :

Given that ,

mean = = 200

standard deviation = = 10

n = 7

sampling distribution of sample mean = = 200

sampling distribution of standard deviation = = / n = 10/ 7 = 3.7796

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