Suppose the heights of 18-year-old men are approximately normally distributed, with mean 65 inches and standard deviation 4 inches.   (a) What is the probability that an 18-year-old man selected at random is between 64 and 66 inches tall? (Round your answer to four decimal places.) (b) If a random sample of twenty-three 18-year-old men is selected, what is the probability that the mean height x is between 64 and 66 inches? (Round your answer to four decimal places.)

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Q: probability that an 18-year-old man selected at random is between 69 and 71 inches tall

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.