<PRE><B>Question 266629</B>
The standard deviation of the lengths of time that women with one job are employed during the first 8 years of their career is 92 weeks.
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I think you data statement is incomplete.
What is the mean time they are employed?
You need that number to answer your questions.
Cheers,
Stan H.
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Length of time employed during the first 8 years of career is a left skewed variable. For that variable do the following: 
a. Determine the sampling distribution of the sample mean for simple random samples of women 50 with one job. Explain your reasoning

The standard deviation of the sample means = 
B. Obtain the probability that the sampling error made in estimating the mean length of time employed by all women with one job by that of a random sample of 50 such women will be at most 20 weeks
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