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TABLE 15-4
The superintendent of a school district wanted to predict the percentage of students passing a sixth-grade proficiency test.She obtained the data on percentage of students passing the proficiency test (% Passing),daily mean of the percentage of students attending class (% Attendance),mean teacher salary in dollars (Salaries),and instructional spending per pupil in dollars (Spending)of 47 schools in the state.
Let Y = % Passing as the dependent variable,X1 = % Attendance,X2 = Salaries and X3 = Spending.
The coefficient of multiple determination ( )of each of the 3 predictors with all the other remaining predictors are,respectively,0.0338,0.4669,and 0.4743.
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):
-True or False: 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.
Q9: Referring to Table 15-6,what is the value
Q23: True or False: The Paasche price index
Q33: Referring to Table 13-2,to test that the
Q37: Referring to Table 14-18,what is the p-value
Q47: Referring to Table 14-8,the analyst wants to
Q66: Referring to Table 13-3,the total sum of
Q67: True or False: Referring to Table 17-8,the
Q70: True or False: Referring to Table 14-15,the
Q144: Referring to Table 14-19,what is the estimated
Q191: True or False: The Regression Sum of