Use data file "Ch11_SatScore.xlsx".

Create a scatterplot of the standardized residuals vs. the x-values ("Sat Score").

Save the graph as "Fig2.png" in your preferred local folder.

What does the graph tell you about the validity of the model that you selected?

	I.	The clearly increasing pattern in the residuals indicates that the linear model is appropriate.
	II.	The clearly decreasing pattern in the residuals indicates that the linear model is appropriate.
	III.	There is no obvious pattern between the x-values and the standardized residuals which indicates that the linear model is appropriate for the data.
	IV.	None of the above.

Sat Score	GPA
1194	2.79
1291	2.84
946	2.81
1314	3.97
1425	3.24
1258	2.94
1255	2.99
1409	2.88
1285	2.88
1423	2.36
1467	3.31
1307	3.47
1129	3.21
1420	3.52
1449	2.65
1114	3.67
1089	2.62
1236	2.75
1125	2.68
1417	3.42
1297	3.57
1435	2.97
1375	3.52
1488	2.91
1082	2.88