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A group of 49 randomly selected students has a mean age of 22 4 years...

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A group of 49 randomly selected students has a mean age of 22 4 years and assume that the population standard deviation is 3 8 Construct a 98 confidence interval for the population mea O A 19 8 25 1 OB 21 1 23 7 OC 20 3 24 5 OD 18 8 26 3 CCD

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