Given Below Are Four Observations Collected in a Regression Study $$\begin{array} { l l } x&y\\2 & 4 \\0 & 7 \\9 & 8 \\9 & 9\end{array}$$

Essay

Given below are four observations collected in a regression study on two variables x independent variable) and y dependent variable).
$$\begin{array} { l l } x&y\\2 & 4 \\0 & 7 \\9 & 8 \\9 & 9\end{array}$$
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.