Question
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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