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3. A Political Committee recently reported that 63% of mayors of large cities have annual salaries of more than $250,000. There are 53 mayors of
3. A Political Committee recently reported that 63% of mayors of large cities have annual salaries of more than $250,000. There are 53 mayors of large cities attending a convention in D.C. Let p be the proportion of them with annual salaries over $250,000. a. Verify that p is a normal random variable. b. Compute the mean and standard deviation. c. Sketch the histogram for p
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