Below you are given information on a woman's age and her annual expenditure on purchase of books.
$\begin{array}{ll}\text { Age }&\text { Annual Expenditure \$) }\
18 & 210 \
22 & 180 \
21 & 220 \
28 & 280
\end{array}$
a. Develop the least squares regression equation.
b. Compute the coefficient of determination.
c. Use a t test to determine whether the slope is significantly different from zero. Let α = 0.05.
d. At 95% confidence, perform an F test and determine whether or not the model is significant.

Question

Below you are given information on a woman's age and her annual expenditure on purchase of books.
 $\begin{array}{ll}\text { Age }&\text { Annual Expenditure \$) }\
18 & 210 \
22 & 180 \
21 & 220 \
28 & 280
\end{array}$ 
a. Develop the least squares regression equation.
b. Compute the coefficient of determination.
c. Use a t test to determine whether the slope is significantly different from zero. Let α = 0.05.
d. At 95% confidence, perform an F test and determine whether or not the model is significant.

Quizplus · Accepted Answer

The Answer of Below you are given information on a woman's age and her annual expenditure on purchase of books.
 $\begin{array}{ll}\text { Age }&\text { Annual Expenditure \$) }\
18 & 210 \
22 & 180 \
21 & 220 \
28 & 280
\end{array}$ 
a. Develop the least squares regression equation.
b. Compute the coefficient of determination.
c. Use a t test to determine whether the slope is significantly different from zero. Let α = 0.05.
d. At 95% confidence, perform an F test and determine whether or not the model is significant.

Below You Are Given Information on a Woman's Age and Her