1. Effectiveness of distance learning: A study was done to compare the effective
ID: 3310411 • Letter: 1
Question
1. Effectiveness of distance learning: 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 scores were as follows. It is reasonable to assume that the samples come from populations that are approximately normal.
online
66 7585 64 88 77
74 91 72 69 77 83
Classroom
80 83 64 81 75 80 86
81 91 64 99 85 74 77
a.Construct a 95% confidence interval for the difference between the mean scores for the two types of instruction. (Hint: Use 2-SampTInt) Round 1 decimal.
b. An educator claims that both methods of instruction are equally effective. Does the confidence interval contradict this claim?
Explanation / Answer
From the given data
a)
b)
As confidence interval has 0 in between upper and lower limit, this means both methods are equally effective.
Given Data Online Classroom Name mean 76.75 80 Sample size 12 14 Std. dev. 8.57 9.35Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.