1.The regression result is as follow:

Number of obs=88

F(2,85)=27.25

Prob>F=0.0000

R-squared=0.6319

Root MSE=63045

Price	Coef.	Robust Std.Err	T	P>|t|	[95% Conf.	Interval]
rooms	15198.19	8943.735	1.70	0.093	-2584.349	32980.73
sqfeet	128.4362	19.59089	6.56	0.000	89.48427	167.3882
_cons	-19315	41520.5	-0.47	0.643	-101868.9	63238.89

where 'price' is a price of housing (a dependent variable), 'rooms' is a number of rooms, and 'sqfeet' is a house size in square feet.

1.1 Write liner regression equation.

1.2 Are the coefficients of independent variables (X_i) statistically significant at 95% confident interval, using T-test.

1.3 Interpret the estimated R-square