Mathematics
Mathematics, 23.12.2019 22:31, fatherbamboo

Amanufacturer knows that their items have a normally distributed lifespan, with a mean of 7.5 years, and standard deviation of 1.1 years. if 17 items are picked at random, 10% of the time their mean life will be less than how many years?

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Amanufacturer knows that their items have a normally distributed lifespan, with a mean of 7.5 years,...

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