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For female heights, the mean was 66.3 inches and the standard deviation was 6.4 inches.  The shortest...

For female heights, the mean was 66.3 inches and the standard deviation was 6.4 inches.  The shortest person in this sample of 17 people, had a mean height of 58 inches.

a. If only 7% of females are above a certain height, what is that height?

b. What is the probability of getting a sample average of heights greater than 68 inches?

Math   Statistics-And-Probability   
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Answer #1

all normal cdf capital phi values are from using z table and inverse z table of biometrica....

Note-if there is any understanding problem regarding this please feel free to ask via comment box..thank you

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