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The heights of men in a certain population follow a normal distribution with mean 69.7 inches and standard deviation 2.8
Posted: Wed May 11, 2022 7:50 pm
by answerhappygod
- The Heights Of Men In A Certain Population Follow A Normal Distribution With Mean 69 7 Inches And Standard Deviation 2 8 1 (34.04 KiB) Viewed 19 times
The heights of men in a certain population follow a normal distribution with mean 69.7 inches and standard deviation 2.8 inches. (a) If 10 men are selected at random, what is the prob- ability their average height is above 72 inches? (b) If exactly one man is selected at random, what is the probability his height is above 72 inches? (c) What is the 80th percentile for the average height of 10 men? (d) How many men must be sampled to be 88% confident the true height is within 2 inches?