Homework SourseThe amount of time an investment banker devotes to hisher jo
The amount of time an investment banker devotes to his/her job per week is normally distributed with a mean of 70 hours and a standard deviation of 5 hours.
Find the probability that the mean amount of work per week for 9 randomly selected investment bankers is more than 72 hours. (Find the nearest answer.)
0.2275
0.11507
0.15866
0.22663
0.06681
| a. | 0.2275 | |
| b. | 0.11507 | |
| c. | 0.15866 | |
| d. | 0.22663 | |
| e. | 0.06681 |
Solution
0.11507
=1-NORMDIST(72,70,5/3,1)
