Shown Below Is a Portion of a Computer Output for a Regression

Essay

Shown below is a portion of a computer output for a regression analysis relating Y demand) and X unit price).
ANOVA
$\begin{array}{lrr}&df&SS\\\text { Regression } & 1 & 5048.818 \\\text { Residual } & 46 & 3132.661 \\\text { Total } & 47 & 8181.479\end{array}$

$\begin{array}{lll}&\text { Coefficients }&\text { Standard Error }\\\text { Intercept } & 80.390 & 3.102 \\\mathrm{X} & -2137 & 0248\end{array}$
a. Perform a t test and determine whether or not demand and unit price are related. Let α = 0.05.
b. Perform an F test and determine whether or not demand and unit price are related. Let α = 0.05.
c. Compute the coefficient of determination and fully interpret its meaning. Be very specific.
d. Compute the coefficient of correlation and explain the relationship between demand and unit price.