An elevator has a placard stating that the maximum capacity is 3600 lb --25passengers.​ So, 25 adult male passengers can have a mean weight of up to 3600/25=144 pounds Assume that weights of males are normally distributed with a mean of 186and a standard deviation of 36
.
a. Find the probability that 1 randomly selected adult male has a weight greater than lb.
b. Find the probability that a sample of randomly selected adult males has a mean weight greater than lb.
c. What do you conclude about the safety of this​ elevator?