Question
(CO 3) The times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of
(CO 3) The times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 15.9 minutes. A random sample of 25 customers has a mean of 36.1 minutes. Would this outcome be considered unusual, so that the store should reconsider its displays?
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Mathematics for Economics and Business
Authors: Ian Jacques
9th edition
129219166X, 9781292191706 , 978-1292191669
