In: Statistics and Probability
Effectiveness of distance learning: A study was done to compare the effectiveness of distance learning with traditional classroom instruction. Eleven 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 | ||||||
67 |
71 |
75 |
67 |
84 |
87 |
71 |
99 |
73 |
67 |
87 |
Classroom | ||||||||
82 |
75 |
67 |
82 |
71 |
82 |
75 |
82 |
99 |
67 |
91 |
75 |
71 |
87 |
Part 1 of 2
(a) Construct a 98% confidence interval for the difference between the mean scores for the two types of instruction. Let μ1 denote the mean score of online instruction. Use the TI-84 calculator and round the answers to one decimal place
An 98% confidence interval for the
mean difference between the mean scores for the two types of
instruction is
<μ1-μ2< . |