The distribution of heights of adult men in the U S is approximately normal with...
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The distribution of heights of adult men in the U S is approximately normal with mean 69 inches and standard deviation 2 5 inches Use what you know about a normal distribution and the 68 95 99 7 rule to answer the questions in parts a b c below Your answer must be entered in the correct format If your answer is a percent such as 25 percent enter 25 PERCENT without the quotes If your answer is in inches such as 10 inches enter 10 INCHES without the quotes and with a space between the number and the INCHES If your answer is an interval such as 14 to 15 inches then enter 14 TO 15 INCHES without the quotes Don t report accuracy greater than what comes from the 68 95 99 7 rule For example if the rule says 10 INCHES then 10 0 INCHES is wrong because the extra decimal place claims too much accuracy If the rule says 1 2 INCHES then 1 20 INCHES is wrong a Between what approximate heights do the middle 95 percent of men fall Answer b About what percent of men are shorter than 66 5 inches Answer c About what percent of men are taller than 69 inches Answer
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