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Help please for this question in lesson 8 A manufacturer knows that their items have a normally distributed length, with a mean of 19.4 inches,

Help please for this question in lesson 8

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A manufacturer knows that their items have a normally distributed length, with a mean of 19.4 inches, and standard deviation of 0.6 inches. If 13 items are chosen at random, what is the probability that their mean length is less than 19.2 inches? Question Help: Video Message instructor

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