The typical amount of sleep per night for a new mother is 5 hours and a standard deviation equal to 1.3 hours. The amount of sleep per night new mothers get is bell-shaped. Use the Empirical Rule to
complete each sentence.
(a) About what percentage of new mhothers get between 2.4 and 7.6 hours of sleep per night? If your answer is say 82% enter 82 WITHOUT the % into the answer box.
(b) About what percentage of new mothers get between 1.1 and 8.9 hours of sleep per night? If your answer is say 82% enter 82 WITHOUT the % into the answer box.
(c) About what percentage of new mothers get between 3.7 and 6.3 hours of sleep per night? If your answer is say 82% enter 82 WITHOUT the % into the answer box.