e^2	e^3	e^4
(y -y hat)^2	(y-yhat)^3	(y-y hat)^4
5.44	12.70	29.64
2.42	3.76	5.86
33.38	192.88	1114.41
0.00	0.00	0.00
100.00	-1000.00	10000.00
25.00	125.00	625.00
400.00	-8000.00	160000.00
4.46	9.41	19.86
85.05	784.34	7233.40
0.60	-0.47	0.37
40.11	254.04	1608.90
2.42	-3.76	5.86
58.24	-635.17	15053.61
M2	M3	M4

Normality test for M2,M3,M4 and explanation would be appreciated :)