SCENARIO 14-15 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), mean teacher salary in thousands of dollars (Salaries), and instructional spending per pupil in thousands of dollars (Spending)of 47 schools in the state. Following is the multiple regression output with Y = % Passing as the dependent variable, = Salaries and Spending:
-Referring to Scenario 14-15, you can conclude definitively that mean teacher salary individually has no impact on the mean percentage of students passing the proficiency test, considering the effect of that instructional spending per pupil, at a 10% level of significance based solely on but not actually computing the 90% confidence interval estimate for

Question

SCENARIO 14-15 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), mean teacher salary in thousands of dollars (Salaries), and instructional spending per pupil in thousands of dollars (Spending)of 47 schools in the state. Following is the multiple regression output with Y = % Passing as the dependent variable,  = Salaries and  Spending:  
-Referring to Scenario 14-15, you can conclude definitively that mean teacher salary individually has no impact on the mean percentage of students passing the proficiency test, considering the effect of that instructional spending per pupil, at a 10% level of significance based solely on but not actually computing the 90% confidence interval estimate for

Quizplus · Accepted Answer

Since the 90% confidence interval estimate for the coefficient of Salaries (11ebc114_12c1_8116_8acb_87ec0242f74f_TB8562_11) includes zero, we can conclude that mean teacher salary individually has no impact on the mean percentage of students passing the proficiency test, considering the effect of instructional spending per pupil, at a 10% level of significance. Since the confidence interval estimate for the coefficient of mean teacher salary (11ebc114_12c1_8116_8acb_87ec0242f74f_TB8562_11) is not computed, we cannot make a definitive conclusion about its impact on the percentage of students passing the proficiency test individually. However, we can only conclude that when considering the effect of instructional spending per pupil, the coefficient for mean teacher salary is not significant at the 10% level of significance.

SCENARIO 14-15 the Superintendent of a School District Wanted to Predict