The typical amount of sleep per night for college students has a bell-shaped distribution with a mean of 7.5 hours and a standard deviation equal to 1.1 hours. Use the Empirical Rule to complete each...

The typical amount of sleep per night for college students has a bell-shaped distribution with a mean of 7.5 hours and a standard deviation equal to 1.1 hours. Use the Empirical Rule to complete each sentence. (In each sentence enter the smaller number in the first answer blank and the larger number in the second answer blank.)