Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	134.25	1.70782512765993	4
2	141.25	12.5266382827424	26
3	128	1.4142135623731	3
4	114.5	9.03696114115064	21
5	123.75	6.34428877022476	15
6	116.25	3.947573094109	9
7	100.5	11.5614301306831	25
8	116.75	3.5939764421413	8
9	120.25	0.5	1
10	106.25	10.4682058316281	22
11	129.25	6.89806736219163	15
12	130.25	3.86221007541882	9
13	110	11.1654228162962	23
14	133.75	8.30160627027485	20
15	137.25	2.62995563967658	6
16	117.75	13.1751027826478	29
17	143.5	12.369316876853	30
18	136.5	1.91485421551268	4
19	114.5	15.545631755148	33
20	141.75	13.1497781983829	32
21	130	3.55902608401044	8
22	109.75	11.5578256317239	25
23	147.25	16.4595463687997	40
24	130.5	8.10349718742881	15
25	113.75	12.5532200384337	27
26	151.25	16.8597153000874	38
27	131	8.04155872120988	18
28	115	9.76387901058454	21
29	151.25	15.5214904782584	37
30	132.25	11.9547758936195	26

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	2.69425782176937
beta	0.0482268386886864
S.D.	0.0676496644978061
T-STAT	0.712891025353871
p-value	0.481812591310796

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	1.45940963577288
beta	0.095251744601347
S.D.	1.51392171629481
T-STAT	0.0629172192829542
p-value	0.950279429350192
Lambda	0.904748255398653