Use the given data to find the equation of the regression line. Round the final
ID: 3245851 • Letter: U
Question
Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs.
Current GPA
3.5
3.6
3.8
3.7
3.6
3.9
3.6
3.6
3.5
3.9
3.9
3.8
4.0
3.7
3.9
3.9
3.5
3.8
3.7
4.0
Current GPA
3.5
3.6
3.8
3.7
3.6
3.9
3.6
3.6
3.5
3.9
3.9
3.8
4.0
3.7
3.9
3.9
3.5
3.8
3.7
4.0
Explanation / Answer
USING MINITAB
Regression Analysis: current GPA versus enterd GPA
The regression equation is
current GPA = 3.476 + 0.0592 enterd GPA
S = 0.199815 R-Sq = 0.2% R-Sq(adj) = 0.0%
Analysis of Variance
Source DF SS MS F P
Regression 1 0.000592 0.0005917 0.01 0.906
Error 8 0.319408 0.0399260
Total 9 0.320000
Fitted Line: current GPA versus enterd GPA
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