A magazine tested LCD televisions. The table below shows the overall quality score and cost in hundreds of dollars. Use the rank correlation coefficient to test for a correlation between the two variables. Use a significance level of alpha equals 0.05. Based on these results, can you expect to get higher quality by purchasing a more expensive LCD television? a. Determine the correlation coefficient.
A magazine tested LCD televisions. The table below shows the overall quality score and cost in hundreds of dollars. Use the rank correlation coefficient to test for a correlation between the two variables. Use a significance level of alpha equals 0.05. Based on these results, can you expect to get higher quality by purchasing a more expensive LCD television? a. Determine the correlation coefficient.
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section: Chapter Questions
Problem 11CT
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A magazine tested LCD televisions. The table below shows the overall quality score and cost in hundreds of dollars. Use the rank correlation coefficient to test for a correlation between the two variables. Use a significance level of alpha equals 0.05. Based on these results, can you expect to get higher quality by purchasing a more expensive LCD television?
a. Determine the correlation coefficient.
r Subscript s equals
(Round to three decimal places as needed.)
b. Determine the critical value(s) of the correlation coefficient.
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
Transcribed Image Text:Quality 74 71
Cost
69 67 65 62
58 54
54
52
50
25 29 36 21 20 13 25 21 14 13 20
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