The average number of moves a person makes in his or her lifetime is

12

and the standard deviation is3.6

.Assume that the sample is taken from a large population and the correction factor can be ignored. Round the final answers to four decimal places and intermediatez

value calculations to two decimal places.

Part 1 of 3

Find the probability that the mean of a sample of

25

people is less than10

.=

P

<

X

10

Part 2 of 3

Find the probability that the mean of a sample of

25

people is greater than10

.=

P

>

X

10

Part 3 of 3

Find the probability that the mean of a sample of

25

people is between11

and12

.=

P

<

11

<

X

12