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06-26-2010, 02:27 PM
Can someone help?

The average number of pounds of meat a person consumes a year is 212.3 pounds. Assume that the standard deviation is 20 pounds. If a sample of 50 individuals is selected, find the probability that the mean of the sample will be less than 210 pounds per year.

06-27-2010, 12:27 AM
Hint: Assume Normal distribution.
Find the distribution of sample mean
Then calculate the probability P( sample mean < 210)