A multiple regression equation yields the following results:

Source	Sum of square	Degree of freedom
Regression	740	2
Error	510	17

i) What is the total sample size?
ii) How many independent variables are being considered?
iii) Compute the coefficient of determination and interpret its value.
iv) Compute the standard error of estimate.
v) Test the hypothesis that the overall fit of the model is significant or not. Assume α=0.05.