Mathematics, 18.07.2019 03:30, caitlyn73

Suppose the heights of 18-year-old men are approximately normally distributed, with mean 67 inches and standard deviation 5 inches. (a) what is the probability that an 18-year-old man selected at random is between 66 and 68 inches tall? (round your answer to four decimal places.) (b) if a random sample of twelve 18-year-old men is selected, what is the probability that the mean height x is between 66 and 68 inches? (round your answer to four decimal places.)

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Suppose the heights of 18-year-old men are approximately normally distributed, with mean 67 inches a...