During the dinner hour, the random time that a customer has to wait in line before...
During the dinner hour, the random time that a customer has to
wait in line before placing an order is normally distributed with a
mean of mu = 54 seconds and a standard deviation of sigma = 10.2
seconds.
If we randomly select 20 days when we had dinner, what is the
probability that the sample mean waiting time for these 20 days is
more than 58 seconds?
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During the dinner hour, the random time that a customer has to
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