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

question 243

True/False

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 Y = % Passing as the dependent variable, X₁ =% Attendance, X ₂ = Salaries and X₃ = Spending:

-Referring to Scenario 18-8,the alternative hypothesis H₁ : At least one of $\beta$ _j $\neq$ 0 for j = 1,2,3 implies that percentage of students passing the proficiency test is affected by all of the explanatory variables.

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