Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	15.4233333333333	0.14803766924385	0.52
2	15.9683333333333	0.104606043049263	0.359999999999999
3	16.5466666666667	0.258925518716144	0.770000000000003
4	17.3308333333333	0.205932836947713	0.699999999999999
5	17.7825	0.0941106698617016	0.32
6	18.2425	0.123812541588263	0.419999999999998
7	18.665	0.145383505379268	0.449999999999999

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	0.291165847011747
beta	-0.00798065017370655
S.D.	0.0215969117044702
T-STAT	-0.369527378863834
p-value	0.726868537336329

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	0.0678420788273586
beta	-0.702171792315702
S.D.	2.25619520607363
T-STAT	-0.311219432797956
p-value	0.768191180415495
Lambda	1.7021717923157