Kindergarten children have heights that are approximately

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Kindergarten children have heights that are approximately normally distributed about a mean of 39.7 inches and a standard deviation of 2.2 inches. If a random sample of 21 is taken, what is the probability that the sample of kindergarten children has a mean height of less than 38.9 inches? (Give your answer correct to four decimal places.)

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Reference no: EM13610407

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