An elevator has a placard stating that the maximum capacity is 4200 lb-28 passengers. So, 28 adult male passengers can have a mean weight of up to 4200/28=150 pounds. Assume that weights of males are...

An elevator has a placard stating that the maximum capacity is 4200 lb-28 passengers.  So, 28 adult male passengers can have a mean weight of up to 4200/28=150 pounds.  Assume that weights of males are normally distributed with a mean of 181 lb and a standard deviation of 26 lb.

A) find the probability that 1 randomly selected adult male has a weight greater than 150 lb.

B) find the probability that a sample of 28 randomly selected adult males has a mean weight greater than 150 lb.

C) does this elevator appear safe?