Weights of women are normally distributed with mean 143 pounds and standard deviation 29 pounds. If 36 women are randomly selected, what is the probability that their mean weight is between 120 and 160 pounds? Round your answer to two decimal places.

Question

Weights of women are normally distributed with mean 143 pounds and standard deviation 29 pounds.  If 36 women are randomly selected, what is the probability that their mean weight is between 120 and 160 pounds?  Round your answer to two decimal places.

Damon · Answer

http://davidmlane.com/hyperstat/z_table.html