Question

An elevator has a placard stating that the maximum capacity is

1600

1600 lb

long dash

—

10

10 passengers.​ So,

10

10 adult male passengers can have a mean weight of up to

1600 divided by 10 equals 160 pounds.

1600/10=160 pounds. If the elevator is loaded with

10

10 adult male​ passengers, find the probability that it is overloaded because they have a mean weight greater than

160

160 lb.​ (Assume that weights of males are normally distributed with a mean of

165 lb

165 lb and a standard deviation of

34 lb

34 lb​.) Does this elevator appear to be​ safe?

Answer 1