A. An elevator’s maximum capac

A. An elevator’s maximum capacity is 16 passengers or a totalweight of 2500 lb. Male weights are normally distributed with amean of 189 lb. and a standard deviation of 39 lb. Find theprobability that 1 randomly selected male has a weight greater than156.25 lb. (Round to four decimal places.)

B.An elevator’s maximum capacity is 16 passengers or a totalweight of 2500 lb. Male weights are normally distributed with amean of 189 lb. and a standard deviation of 39 lb. Find theprobability that a sample of 16 males have a mean weight greaterthan 156.25 lb. (which exceeds the maximum capacity). (Round tofour decimal places.)

Answer:

Refer Z-table to find the probability or use excel formula”=NORM.S.DIST(-0.84, TRUE)” to find the probability.

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Refer Z-table to find the probability or use excel formula”=NORM.S.DIST(-3.36, TRUE)” to find the probability.


 
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