An elevator has a placard stating that the maximum capacity is 4100 lb-27 passengers. So, 27 adult male passengers can have a

Question

An elevator has a placard stating that the maximum capacity is 4100 lb-27 passengers. So, 27 adult male passengers can have a mean weight of up to 4100/27=152 pounds. Assume that weights of males are normally distributed with a mean of 188 lb and a standard deviation of 30 lb.
a. Find the probability that 1 randomly selected adult male has a weight greater than 152 lb.
b. Find the probability that a sample of 27 randomly selected adult males has a mean weight greater than 152 lb
c. What do you conclude about the safety of this elevator?

Kunduz · Accepted Answer

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