A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school. The researcher uses years of experience to predict salary. The raw data is given in the table below. The resulting equation was:
Y = 19389.21 + 1330.12X, where Y = salary and X = years of experience (a) Develop a scatter diagram.
(b) What is the correlation coefficient?
(c) What is the coefficient of determination?

Question

A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school. The researcher uses years of experience to predict salary. The raw data is given in the table below. The resulting equation was:
Y = 19389.21 + 1330.12X, where Y = salary and X = years of experience  (a) Develop a scatter diagram.
(b) What is the correlation coefficient?
(c) What is the coefficient of determination?

Quizplus · Accepted Answer

The Answer of A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school. The researcher uses years of experience to predict salary. The raw data is given in the table below. The resulting equation was:
Y = 19389.21 + 1330.12X, where Y = salary and X = years of experience  (a) Develop a scatter diagram.
(b) What is the correlation coefficient?
(c) What is the coefficient of determination?

A Large School District Is Reevaluating Its Teachers' Salaries