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Mathematics, 20.05.2021 18:30 lorrainelopez
A study was done to compare the effectiveness of distance learning with traditional classroom instruction. Fourteen students took a business administration course online, while 17 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
65 74 84 63 87 76 73
90 71 68 76 82 61 69
Classroom
70 79 55 74 82 70 80 73 77
54 82 80 81 68 58 69 92
Required:
a. Construct a 95% confidence interval for the difference between the mean scores for the two types of instruction.
b. An educator claims that both methods of instruction are equally effective. Does the confidence interval contradict this claim?
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