Given Below Are Seven Observations Collected in a Regression Study $\begin{array} { l l } x&y\\2&12\\3&9\\6&8\\7&7\\8&6\\9&5\\9&2\end{array}$

Essay

Given below are seven observations collected in a regression study on two variables, X independent variable) and Y dependent variable).
$\begin{array} { l l } x&y\\2&12\\3&9\\6&8\\7&7\\8&6\\9&5\\9&2\end{array}$
a. Develop the least squares estimated regression equation.
b. At 95% confidence, perform a t test and determine whether or not the slope is significantly different from zero.
c. Perform an F test to determine whether or not the model is significant. Let α = 0.05.
d. Compute the coefficient of determination.