: A study was done to compare the effectiveness of distance learning with traditional classroom instruction. Twelve students took a business administration course online, while 14  students took it in a classroom. The final exam scores were as follows. It is reasonable to assume that the samples come from populations that are approximately normal.      Online 69 70 84 66 83 84 70 97 73 69 84 84       Classroom 83 84 66 83 70 83 84 83 97 66 90 84 70 84       Construct a 95 % confidence interval for the difference between the mean scores for the two types

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