Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	71.25	1.70782512765993	4
2	78.25	12.5266382827424	26
3	65	1.41421356237310	3
4	70.5	1.29099444873581	3
5	79.25	7.88986691902975	18
6	75.5	4.12310562561766	10
7	85.5	4.20317340430616	10
8	100.25	5.18812747209113	11
9	114.5	6.2449979983984	14
10	115.75	6.23832242407097	13
11	122	8.98146239020499	19
12	128	6.21825270205921	14
13	121.25	5.85234995535981	14
14	128.5	12.5830573921179	26
15	142.5	11.0302614051829	26
16	145	5.35412613473634	11
17	148.75	12.5266382827424	27
18	172.5	11.9023807142381	28
19	180.75	6.13052471924984	12
20	183.5	15.8429795177549	33
21	189.75	8.0156097709407	18
22	191.25	4.78713553878169	10
23	187.25	20.3039405042470	42
24	186.5	4.65474668125631	11
25	179.5	5.56776436283002	13
26	171.25	16.2557682070089	38
27	189.75	6.9462219947249	15
28	186.5	9.1104335791443	20
29	175.25	14.7507061977837	32
30	186.75	9.9121138007995	23

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	1.22218343569408
beta	0.050545445753578
S.D.	0.0172465529832396
T-STAT	2.93075641275672
p-value	0.0066621118425517

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	-3.70232509239089
beta	1.15385168298121
S.D.	0.276041845956774
T-STAT	4.17998828757977
p-value	0.000258879975489120
Lambda	-0.153851682981214