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How much do you study? A survey among freshmen at a certain university revealed that the...

How much do you study? A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean

25

and standard deviation

5

. Use the Cumulative Normal Distribution Table to answer the following.

(a) Find the

96th

percentile of the number of hours studying.

(b) Find the

31st

percentile of the number of hours studying.

(c) Between what two values are the middle

88%

of the hours spent studying? (Enter the smaller number in the first box.)

Round your answers to at least two decimals.

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