Stats help

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aregeethree

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Joined
Mar 22, 2013
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Here is the problem:

At a convenience store, the amount of money customers spend has a right-skewed dis-
tribution with mean $6:42 and standard deviation $3:82. If we randomly select 100
customers and record the amount these customers spend, what is the approximate sam-
pling distribution of the sample mean? Explain.

- Not quite sure how to start except by drawing a right-skewed bell curve andlabelling the mean and standard deviation.
 
Are you SURE you need to draw the skewed distribution? The problem asks for the distribution of the Sample Mean with a very large sample size. It's not sounding all that skewed to me.
 
aregeethree said:
Here is the problem:

At a convenience store, the amount of money customers spend has a right-skewed dis-
tribution with mean $6:42 and standard deviation $3:82. If we randomly select 100
customers and record the amount these customers spend, what is the approximate sam-
pling distribution of the sample mean? Explain.

- Not quite sure how to start except by drawing a right-skewed bell curve andlabelling the mean and standard deviation.
Click to expand...
I agree with tkhunny. Go back and read the section on the Sampling Theorem. How does the distribution of sample means relate to the population distribution? You should find the explanation there.
 
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