Assume that men's weights are normally distributed with a mean of 172 lb and standard deviation of 29 lb (national health survey) if 81 men are randomly selected, find the probability that they have a mean weight less than 167 lb.

0.0606

Step-by-step explanation:

Given : The men's weights are normally distributed with a mean of 172 lb and standard deviation of 29 lb.

i.e. and

and sample size : n= 81

Let x be a random variable that denotes the men's weights.

Formula :

Then, the probability that they have a mean weight less than 167 lb will be :-

Hence, the  probability that they have a mean weight less than 167 lb = 0.0606

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation: