Question
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10.8 years, and standard deviation of 3.1 years. If you
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10.8 years, and standard deviation of 3.1 years. If you randomly purchase 6 items, what is the probability that their mean life will be longer than 10 years?
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Introduction To Probability Statistics And Random Processes
Authors: Hossein Pishro-Nik
1st Edition
0990637204, 9780990637202
