Regression - Assumptions

Question 25 (4 points)

You are required to setup a predictive equation involving variable 1 and variable 2. First, you plot the DATAto determine if linear regression applies. You decide

Question 25 options:

	Linear regression is not applicable because the point pattern is curvilinear (has a curve).
	You need more information before deciding to use linear regression.
	Linear regression is not useful because the points have no discernible pattern.
	The linear regression equation will be very useful because the points have a strong linear pattern.
	Linear regression is not applicable because it appears that there are two linear patterns indicating that the data come from two populations.

variable1	variable2
5.92418	16.01040
-2.15342	6.90096
-5.68710	3.20965
-2.35173	8.11837
9.13267	20.86393
8.84593	17.88436
0.60205	11.33976
4.30225	13.72104
-9.69073	0.22652
-6.81619	2.88607
7.00841	14.48358
4.48845	15.56499
3.06470	11.36857
-9.46731	1.14076
1.54090	12.95229
-4.20144	5.79307
6.11798	15.91570
9.94412	16.96745
1.32124	10.86254
-7.69106	1.10462
5.89874	15.93450
-0.72913	10.47150
8.39173	17.99690
-9.46846	0.72233