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Probability that their mean height

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Reference no: EM131167970

Suppose you know that male height (for adults) is normally distributed with a mean of 70 inches and a std dev of 3 inches.

a) How many deviations is a 74.5 from the mean?

b) What is the z value for 74.5?

c) Why are they the same?

d) Suppose a male person is 68 inches, what percentage of males are shorter than him? Taller than him?

e) Suppose you chose 50 males. What is the probability that their mean height is above 71 inches?

Reference no: EM131167970

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