Select True or False from each pull-down menu, depending on whether the corresponding statement is true or false.

? True False  1. In order to test the significance of a multiple regression model involving 5 independent variables and 30 observations, the numerator and denominator degrees of freedom for the critical value of $F$ are 5 and 24, respectively.

? True False  2. In a multiple regression analysis involving 50 observations and 5 independent variables, $SST=475$ and $SSE=71.25$. The multiple coefficient of determination is 0.85.

? True False  3. In testing the significance of a multiple regression model in which there are three independent variables, the null hypothesis is $H_0:\beta_1=\beta_2=\beta_3$.

? True False  4. In reference to the equation $\hat{y}=1.86-0.51x_1+0.60x_2$, the value 0.60 is the change in $y$ per unit change in $x_2$, regardless of the value of $x_1$.