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Suppose that an airline uses a seat width of 16.1 in. Assume men have hip breadths...

Suppose that an airline uses a seat width of 16.1 in. Assume men have hip breadths that are normally distributed with a mean of 14.4 and a standard deviation of 1 inch.

A. Find the probabulity that if an individual man is randomly selected his his will be greater than 16.1

B. If a plane is filled with 129 randomly selected men, find the probability that these men have a hip breadth greater than 16.1

C. Which result should be considered for any changes in seat design: the result from part or b?

because: only average indiviudals should be considered or other?

Math   Statistics-And-Probability   
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