Question
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14 years, and standard deviation of 3 years. Round your
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14 years, and standard deviation of 3 years.
Round your answer to four decimals.
If you randomly purchase 13 items, what is the probability that their mean life will be longer than 12 years?
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Introductory Algebra
Authors: Alan S Tussy, Rosemary Karr, Marilyn Massey, Diane Koenig, R David Gustafson
5th Edition
1305161866, 9781305161863
