SCENARIO 18-8 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. Following is the multiple regression output with as the dependent variable,
-Referring to Scenario 18-8, which of the following is the correct null hypothesis to test whether daily mean of the percentage of students attending class has any effect on percentage of students passing the proficiency test, considering the effect of all the other independent variables?

Question

SCENARIO 18-8 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. Following is the multiple regression output with  as the dependent variable,   
-Referring to Scenario 18-8, which of the following is the correct null hypothesis to test whether daily mean of the percentage of students attending class has any effect on percentage of students passing the proficiency test, considering the effect of all the other independent variables?

Quizplus · Accepted Answer

The null hypothesis to test whether daily mean of the percentage of students attending class has any effect on percentage of students passing the proficiency test while considering the effect of all the other independent variables is:

H0: β2 = 0

where β2 is the coefficient of the variable % Attendance in the multiple regression equation.

Option B (11ebc114_12e4_98ed_8acb_03f07d291c81_TB8562_11) corresponds to this null hypothesis. The null hypothesis to test whether daily mean of the percentage of students attending class has any effect on percentage of students passing the proficiency test, considering the effect of all the other independent variables, is that the coefficient of % Attendance in the multiple regression model is equal to zero:
H0: β2 = 0
where β2 is the coefficient of % Attendance. 
Option B (11ebc114_12e4_98ed_8acb_03f07d291c81_TB8562_11) is the correct statement of the null hypothesis.

SCENARIO 18-8 the Superintendent of a School District Wanted to Predict