Answer:
Time spent in Observed Predicted Residual
studying (x) midterm score midterm score
12 70 60.5 9.5
18 75 83.34 -8.34
Step-by-step explanation:
Given, The equation of the line of best fit: [tex]y=3.8x+14.94[/tex] (which gives the predicted score.)
Time spent in studying of 12 hours i.e. at x=12, observed y= 70
Predicted y = [tex]3.8(12)+14.94=60.5[/tex]
Residual =Observed y - predicted y
= 70-60.5
= 9.5
Time spent in studying of 18 hours i.e. at x=18, observed y= 75
Predicted y = [tex]3.8(18)+14.94=83.34[/tex]
Residual = Observed y - predicted y
= 75-83.34
= -8.34
Time spent in Observed Predicted Residual
studying (x) midterm score midterm score
12 70 60.5 9.5
18 75 83.34 -8.34
