Y	X1	X2	e
5	110	30	-3,008
11	120	40	-2,938
18	143	42	-5,321
24	150	40	-1,649
29	152	51	0,342
35	162	59	0,818
37	180	60	-4,412
42	182	63	-0,800
43	180	61	1,386
48	175	63	7,933
49	195	85	-3,331
51	196	90	-2,734
53	183	98	2,720
40	190	90	-11,392
34	150	80	0,249
30	150	70	-1,726
52	160	65	17,383
45	170	65	6,480

Check for autocorrelation. How would you control heteroscedasticity? Why is it not important the order of dealing with the problems of heteroscedacity and autocorrelation?