b) According to a certain survey, adults spend 2.25 hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching television on a weekday" is 1.93 hours. If a random sample of 40 adults is obtained, describe the sampling distribution of x, the mean amount of time spent watching television on a weekday. x is approximately normal with μx=2.252.25 and σx=0.3051600.305160.(Round to six decimal places as needed.)(c) Determine the probability that a random sample of 40 adults results in a mean time watching television on a weekday of between 2 and 3 hours.The probability is nothing. (Round to four decimal places as needed.)

b) According to a certain survey, adults spend 2.25 hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching television on a weekday" is 1.93...

b) According to a certain survey, adults spend

2.25

hours per day watching television on a weekday. Assume that the standard deviation for "time spent watching television on a weekday" is

1.93

hours. If a random sample of

adults is obtained, describe the sampling distribution of

the mean amount of time spent watching television on a weekday.

is approximately normal

with

μx=2.252.25

and

σx=0.3051600.305160.

(Round to six decimal places as needed.)

adults results in a mean time watching television on a weekday of between 2 and 3 hours.

The probability is

nothing.

(Round to four decimal places as needed.)

Jun 02, 2022