Use the Data Given Below to Answer the Following Questions)

Multiple Choice

Use the data given below to answer the following questions) .
Following is an extract from the database of a construction company. The table shows the height of walls in feet and the cost of raising them. The estimated simple linear regression equation is given as Ŷ = b0 + b1X. Hint: Use Excel functions) . $$\begin{array} { | r | r | } \hline \text { Height ft) } & \text { Cost \$) } \\\hline 4 & 670 \\\hline 3 & 430 \\\hline 7 & 810 \\\hline 9 & 1100 \\\hline 6 & 790 \\\hline 8 & 880 \\\hline 5 & 760 \\\hline 11 & 1200 \\\hline\end{array}$$
-Which of the following is true about Excel outputs Multiple R?

A) It is often referred to as the coefficient of determination.
B) A value of 0 indicates positive correlation.
C) A negative slope of the regression line denotes a positive Multiple R.
D) It is another name for the sample correlation coefficient, r.