Price (Thousands in currency) Y	Lands meters X1	Construction meters X2	Number of beedroms X3
2700	288	378	4
1895	160	252	4
1397	230	252	4
1795	234	167	2
650	72	124	4
850	128	262	4
3875	188	246	4
4300	390	380	3
11850	885	775	4
11900	885	775	3
3250	150	233	3
6700	406	420	3
5499	320	390	4
4250	170	244	4
4250	170	233	3
470	160	127	3
500	90	73	2
550	91	73	2
650	110	90	2
550	90	74	2
620	172	76	2
1700	189	374	4
2330	300	330	4
1600	136	140	3
1100	144	290	3

1.-Tests the significance of the individual regression coefficients. Perform all the stages of a hypothesis test for each of the coefficients.

2.-Calculate the standard error of the estimate.

3.-Calculate and interpret R2 in the context of the problem.

4.- Calculate R2 adjusted