Examlex
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) :
-Referring to Table 15-4,the better model using a 5% level of significance derived from the "best" model above is
Final Number
The conclusive or ultimate figure that results from a series of calculations, measurements, or operations.
Customers
Individuals or entities that purchase goods or services produced by a business.
Lot Size
The number of units of product, shares, or other securities traded or manufactured in a single transaction or production run.
Inventory Level
The quantity of goods or materials on hand at a particular time within a business.
Q18: True or False: The Paasche price index
Q50: True or False: Referring to Table 15-6,the
Q60: Referring to Table 13-5,the standard error of
Q91: A second-order autoregressive model for average mortgage
Q129: Referring to Table 16-5,the number of arrivals
Q181: Referring to Table 13-3,the coefficient of correlation
Q189: Referring to Table 14-4,which of the following
Q191: Referring to Table 17-5,to test the significance
Q219: True or False: Referring to Table 14-15,you
Q235: Referring to Table 17-8,which of the following