Instruction 13.22 the Education Department's Regional Executive Officer Wanted to Predict the Predict

Instruction 13.22
The education department's regional executive officer wanted to predict the percentage of students passing a Grade 6 proficiency test. She obtained the data on percentage of students passing the proficiency test (% Passing), daily average of the percentage of students attending class (% Attendance), average 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 Y = % Passing as the dependent variable, X₁ = % Attendance, X₂ = Salaries and X₃ = Spending:

-Referring to Instruction 13.22,there is sufficient evidence that the percentage of students passing the proficiency test depends on all of the explanatory variables.