nline courses: A sample of 257 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.29, and the standard deviation was 0.86. (a) Construct a 90% confidence interval for the mean score. (b) Assume that the mean score fo
nline courses: A sample of 257 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.29, and the standard deviation was 0.86. (a) Construct a 90% confidence interval for the mean score. (b) Assume that the mean score fo
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Online courses: A sample of 257 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.29, and the standard deviation was 0.86.
(a) Construct a 90% confidence interval for the mean score.
(b) Assume that the mean score for students taking traditional courses is 5.49. A college that offers online courses claims that the mean scores for online courses and traditional courses are the same. Does the confidence interval contradict this claim? Explain.
(a) A 90% confidence interval for the mean score is
__くいく___ (Round the answers to at least two decimal places
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