The following 10 observations of variables x and y were collected.
$$\begin{array} { | c | c c c c c c c c c c | }
\hline \boldsymbol { x } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \
\hline y & 25 & 22 & 21 & 19 & 14 & 15 & 12 & 10 & 6 & 2 \
\hline
\end{array}$$ Find the least squares regression line,and the estimated value of y when x = 3.

Question

The following 10 observations of variables x and y were collected.
 $$\begin{array} { | c | c c c c c c c c c c | } 
\hline \boldsymbol { x } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \
\hline y & 25 & 22 & 21 & 19 & 14 & 15 & 12 & 10 & 6 & 2 \
\hline
\end{array}$$ Find the least squares regression line,and the estimated value of y when x = 3.

Quizplus · Accepted Answer

The Answer of The following 10 observations of variables x and y were collected.
 $$\begin{array} { | c | c c c c c c c c c c | } 
\hline \boldsymbol { x } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \
\hline y & 25 & 22 & 21 & 19 & 14 & 15 & 12 & 10 & 6 & 2 \
\hline
\end{array}$$ Find the least squares regression line,and the estimated value of y when x = 3.

The Following 10 Observations of Variables X and Y Were