Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	440.25	1.70782512765993	4
2	447.25	12.5266382827424	26
3	434	1.4142135623731	3
4	438.75	2.06155281280883	5
5	442.25	17.6517232397671	39
6	407.75	4.19324854180304	10
7	411.5	3	6
8	419.25	18.0069431053691	39
9	395.5	6.2449979983984	15
10	395.75	8.77021474461525	19
11	388.75	16.7605688049859	34
12	365	4.96655480858378	11
13	357	11.8883696667513	26
14	347.25	24.5950537032686	50
15	302.5	8.81286937760152	20
16	296.75	8.84590300647707	18
17	297	23.137271518771	48
18	257	9.69535971483266	21
19	252.75	8.26135582092915	19
20	255.75	20.271079563424	40
21	220.75	9.74251849711699	22
22	209.5	11.8180652674906	28
23	210.25	20.8865985742054	42
24	176.5	10.2794292967395	25
25	159.75	13.4505266315735	29
26	147.25	23.2289331079439	47
27	109.5	12.0415945787923	26
28	83	11.4017542509914	24
29	79.5	23.6149670054113	48
30	36.5	8.50490054811538	19

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	17.5041692964709
beta	-0.0190499229022239
S.D.	0.00977168693149113
T-STAT	-1.94950196785694
p-value	0.0613157199362863

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	4.64084197730159
beta	-0.431531189433701
S.D.	0.224186798809605
T-STAT	-1.92487332762259
p-value	0.0644598685863708
Lambda	1.4315311894337