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You would like to study the height of students at your university. Suppose the average for...

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Basic Math

You would like to study the height of students at youruniversity. Suppose the average for all university students is 68inches with a SD of 20 inches, and that you take a sample of 17students from your university.

a) What is the probability that the sample has a mean of 64 ormore inches? probability = .204793 (is this answer correct or no?and I need help with part b too.)

b) What is the probability that the sample has a mean between 63and 68 inches?

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