Question
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 9.6 years, and standard deviation of 1.7 years. If you
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 9.6 years, and standard deviation of 1.7 years. If you randomly purchase 22 items, what is the probability that their mean life will be longer than 10 years?
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A Survey Of Mathematics With Applications
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
11th Edition
0135740460, 978-0135740460
