For the simple regression model of Chapter 4, you have been given the following data: $$\begin{array} { c }
\sum _ { i = 1 } ^ { 420 } Y _ { i } = 274,745.75 ; \sum _ { i = 1 } ^ { 420 } X _ { i } = 8,248.979 ; \\
\sum _ { i = 1 } ^ { 420 } X _ { i } Y _ { i } = 5,392,705 ; \sum _ { i = 1 } ^ { 420 } X _ { i } ^ { 2 } = 163,513.03 ; \sum _ { i = 1 } ^ { 420 } Y _ { i } ^ { 2 } = 179,878,841.13
\end{array}$$ (a)Calculate the regression slope and the intercept.

Question

For the simple regression model of Chapter 4, you have been given the following data: $$\begin{array} { c } 
\sum _ { i = 1 } ^ { 420 } Y _ { i } = 274,745.75 ; \sum _ { i = 1 } ^ { 420 } X _ { i } = 8,248.979 ; \\
\sum _ { i = 1 } ^ { 420 } X _ { i } Y _ { i } = 5,392,705 ; \sum _ { i = 1 } ^ { 420 } X _ { i } ^ { 2 } = 163,513.03 ; \sum _ { i = 1 } ^ { 420 } Y _ { i } ^ { 2 } = 179,878,841.13
\end{array}$$ (a)Calculate the regression slope and the intercept.

Quizplus · Accepted Answer

The Answer of For the simple regression model of Chapter 4, you have been given the following data: $$\begin{array} { c } 
\sum _ { i = 1 } ^ { 420 } Y _ { i } = 274,745.75 ; \sum _ { i = 1 } ^ { 420 } X _ { i } = 8,248.979 ; \\
\sum _ { i = 1 } ^ { 420 } X _ { i } Y _ { i } = 5,392,705 ; \sum _ { i = 1 } ^ { 420 } X _ { i } ^ { 2 } = 163,513.03 ; \sum _ { i = 1 } ^ { 420 } Y _ { i } ^ { 2 } = 179,878,841.13
\end{array}$$ (a)Calculate the regression slope and the intercept.

For the Simple Regression Model of Chapter 4, You Have