Question
Given the following sample observations, draw a scatter diagram on a separate piece of paper. X:...
Given the following sample observations, draw a scatter diagram on a separate piece of paper.
| X: | −8 | −17 | 13 | 4 | 16 |
| Y: | 53 | 247 | 155 | 1 | 339 |
Click here for the Excel Data File
-
Compute the correlation coefficient. (Round your answer to 3 decimal places.)
-
Does the relationship between the variables appear to be linear?
-
Yes
-
No
-
Try squaring the x variable and then determine the correlation coefficient. (Round your answer to 3 decimal places.)
Homework Answers
Answer #1
The statistical software output for this problem is :
1) correlation coefficient = 0.200
No
squaring the x variable the correlation coefficient = 0.942
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