A manufacturer produces a commodity where the length of the commodity has approximately normal distribution with a mean of 9 inches and standard deviation of 1.6 inches. If a sample of 35 items are chosen at random, what is the probability the sample's mean length is greater than 8.4 inches? Round answer to four decimal places.

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20-06-2024
Mathematics

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A manufacturer produces a commodity where the length of the commodity has approximately normal distribution with a mean of 9 inches and standard deviation of 1.6 inches. If a sample of 35 items are chosen at random, what is the probability the sample's mean length is greater than 8.4 inches? Round answer to four decimal places.

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