Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	23.15	1.91920122273130	4.3
2	20.45	0.173205080756887	0.399999999999999
3	21.475	2.11719153597401	4
4	22.45	0.91469484893415	2
5	19.825	0.623832242407097	1.3
6	20.875	2.41298570240273	4.5
7	20.775	1.82642638322308	4.2
8	18.875	0.689806736219162	1.5
9	19.8	1.22474487139159	2.70000000000000
10	17.825	0.984462628374824	2.1
11	15.95	1.41067359796659	3.1
12	18.625	5.03942787758028	10.3
13	18.9	2.52322544903674	5.6
14	20.775	0.75	1.7
15	21.55	2.55669056920595	4.9

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	2.22540966644594
beta	-0.027263777797825
S.D.	0.179309923250436
T-STAT	-0.152048349046174
p-value	0.881483186071449

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	0.298646209238187
beta	-0.0123529412320379
S.D.	2.35392987293673
T-STAT	-0.00524779492119132
p-value	0.995892560911548
Lambda	1.01235294123204