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Suppose a subdivision on the southwest side of Denver, Colorado, contains1,600houses. The subdivision was built in 1983. A sample of120houses is selected randomly and evaluated
Suppose a subdivision on the southwest side of Denver, Colorado, contains1,600houses. The subdivision was built in 1983. A sample of120houses is selected randomly and evaluated by an appraiser. If the mean appraised value of a house in this subdivision for all houses is $229,000, with a standard deviation of $8,400, what is the probability that the sample average is greater than $231,000?
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