Statistics questions

According to the U.S. Bureau of Labor Statistics, self-employed persons with a home-based business work a mean of 50 hours per week and a standard deviation of 10 hours.
A. If this distribution is normal, what is the sampling distribution if you were to use a sample of size 49?
B. What is the probability that in a sample of size 49 that the average hours worked would be more than 49 hours per week?
Asked Mar 27, 2012
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Answered Mar 27, 2012

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