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need help pls! The operation manazer at a tire manufacturing company believes that the mean milesge of a tire is 23,383 mles, winh a variance

need help pls!
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The operation manazer at a tire manufacturing company believes that the mean milesge of a tire is 23,383 mles, winh a variance of 21,436,900. What is the protiability that the sample mean would be greater than 22,904 mies in a sample of 226 tres if the manager it conect? flowind yuur ansaer to four decinal piaces

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