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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 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 OA. (19.8,25.1) OB. (21.1,23.7) O C. (20.3,24.5) OD. (18.8,26.3)

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