Your textbook extends the simple regression analysis of Chapters 4 and 5 by adding an additional explanatory variable,the percent of English learners in school districts (PctEl).The results are as follows: = 698.9 - 2.28 × STR
and = 698.0 - 1.10 × STR - 0.65 × PctEL
Explain why you think the coefficient on the student-teacher ratio has changed so dramatically (been more than halved).

Question

Your textbook extends the simple regression analysis of Chapters 4 and 5 by adding an additional explanatory variable,the percent of English learners in school districts (PctEl).The results are as follows:  = 698.9 - 2.28 × STR
and  = 698.0 - 1.10 × STR - 0.65 × PctEL
Explain why you think the coefficient on the student-teacher ratio has changed so dramatically (been more than halved).

Quizplus · Accepted Answer

The Answer of Your textbook extends the simple regression analysis of Chapters 4 and 5 by adding an additional explanatory variable,the percent of English learners in school districts (PctEl).The results are as follows:  = 698.9 - 2.28 × STR
and  = 698.0 - 1.10 × STR - 0.65 × PctEL
Explain why you think the coefficient on the student-teacher ratio has changed so dramatically (been more than halved).

Your Textbook Extends the Simple Regression Analysis of Chapters 4