TABLE 15-4

The output from the best-subset regressions is given below:

Following is the residual plot for % Attendance:

Following is the output of several multiple regression models:
Model (I):

Model (II):

Model (III):

-Referring to Table 15-4, the quadratic effect of daily average of the percentage of students attending class on percentage of students passing the proficiency test is not significant at a 5% level of significance.

Question

TABLE 15-4
  
The output from the best-subset regressions is given below:
  
Following is the residual plot for % Attendance:
  
Following is the output of several multiple regression models:
Model (I):
  
Model (II):
  
Model (III):
 
-Referring to Table 15-4, the quadratic effect of daily average of the percentage of students attending class on percentage of students passing the proficiency test is not significant at a 5% level of significance.

Quizplus · Accepted Answer

Without the specific data from Table 15-4, we cannot determine the significance of the quadratic effect. Significance would be assessed using a p-value from a statistical test, which is not provided here.

TABLE 15-4 The Output from the Best-Subset Regressions Is Given Below