Provide the DF for this data II. What is the critical value of r in a two tailed test with the significance level set at .05? C. Is this a significant correlation between X and Y? Use mathematical notation for your answer.
Provide the DF for this data II. What is the critical value of r in a two tailed test with the significance level set at .05? C. Is this a significant correlation between X and Y? Use mathematical notation for your answer.
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
Chapter7: Applying Fractions
Section7.6: Percents Problems
Problem 11WE
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Question
I. Provide the DF for this data
II. What is the critical value of r in a two tailed test with the significance level set at .05?
C. Is this a significant
Transcribed Image Text:Person X
Y
A
16
4.0
15.3 4.0
14.5 3.7
D
14.2 3.5
E
14.0 3.8
12.2 2.9
B.
Expert Solution
Step 1
Given Information:
| X | Y |
| 16 | 4.0 |
| 15.3 | 4.0 |
| 14.5 | 3.7 |
| 14.2 | 3.5 |
| 14.0 | 3.8 |
| 12.2 | 2.9 |
Significance level
(1) Degrees of freedom is obtained as follows:
(2) To find the critical value of r in a two tailed test with the significance level set at .05:
Using critical value table for Pearson coefficient:
Critical values for a two tailed test at 4 degrees of freedom and 0.05 significance level are: -0.811 and +0.811
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