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Average weight of the sample

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Suppose the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 babies is selected. What is the probability that the average weight of the sample is less than 11.28 pounds?

Write only a number, round to 4 decimal places.

Reference no: EM131555243

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