Construct a halfNormal probability plot to determine if the

Construct a half-Normal probability plot to determine if the data below come from a normal distribution. Make sure to explain your conclusion.

Solution

It shows that as total prob if assumed as normal differs from 1 considerably by 0.1727 which cannot be taken as rounding off error, we do not accept that the data follows a normal distribution.

i	Y	Z	Prob
1	13.2	-0.16045	0.0636
2	11.9	-0.68191	0.2324
3	14.2	0.240674	0.0948
4	11.1	-1.00281	0.3413
5	17.5	1.56438	0.4406
Aver	13.6
	2.493391		1.1727