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The average height of adult American men is 69" with a standard deviation of 3". If...

The average height of adult American men is 69" with a standard deviation of 3". If samples of 50 men are taken:

a. What is the mu of the x bars?

b. What is the sigma of the x bars?

c. What is the probability that the next x bar is less than 68 inches?

d. What is the height below which you will find 75% of the x bars?

Math   Statistics-And-Probability   
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