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, X 1 =% Attendance, X 2 = Salaries and X 3 = Spending: -Referring to Scenario 18-8,you can conclude that instructional spending per pupil individually has no impact on the mean percentage of students passing the proficiency test,considering the effect of all the other independent variables,at a 10% level of significance based solely on the 95% confidence interval estimate for $\beta$₃ .

Question

Quizplus · Accepted Answer

If the 95% confidence interval for the coefficient of instructional spending per pupil does not include zero, it indicates that there is a statistically significant impact of instructional spending per pupil on the mean percentage of students passing the proficiency test at the 5% level of significance. Since the 5% level is more stringent than the 10% level, the statement that instructional spending per pupil has no impact at the 10% level of significance, based solely on the 95% confidence interval, would be incorrect.

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

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