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According to a recent poll cholesterol levels in healthy adults are normally distributed with a mean...

According to a recent poll cholesterol levels in healthy adults are normally distributed with a mean of 209 mg/dL and a standard deviation of 35 mg/dL. A random sample of 42 healthy adults is selected. Describe the sampling distribution of the sample mean cholesterol level for the sample of 42 adults.

Math   Statistics-And-Probability   
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Answer #1

Solution :

Given that,

mean = = 209

standard deviation = = 35

Sample size =n = 42

=209

= / n =  35 42 = 5.4006

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