Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	696.25	1.70782512765993	4
2	703.25	12.5266382827424	26
3	690	1.41421356237310	3
4	679.25	6.34428877022476	15
5	679	16.1451747177498	35
6	649.5	7.04745817062199	14
7	625	9.76387901058454	23
8	625.75	13.3759734848222	30
9	591.25	8.18026079453868	17
10	566	13.5646599662505	30
11	559	19.4422220952236	44
12	522.5	10.1488915650922	23
13	499.5	8.10349718742881	19
14	503	20.0166597280032	45
15	464	11.9443152447793	28
16	455.5	5.91607978309962	12
17	453.5	28.6647286166583	64
18	403.5	11.7331439378654	26
19	380.75	10.1447851956888	19
20	370.5	35.7164761233057	80
21	310.5	10.0829889748361	21
22	288.5	8.81286937760152	17
23	274	40.9715348341585	92
24	222.5	10.1488915650922	23
25	205	6.58280588604383	14
26	194.5	44.8144321991625	101
27	140.75	10.3400515794974	25
28	121.5	7.72442015083764	16
29	125.25	41.4115523334572	93
30	91.5	9.53939201416946	23

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	23.9703262287886
beta	-0.0211427451366656
S.D.	0.0103841142092862
T-STAT	-2.03606631346161
p-value	0.0513032360208188

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	4.73370622739984
beta	-0.390377442782828
S.D.	0.238127496653785
T-STAT	-1.63936314902097
p-value	0.112326791283919
Lambda	1.39037744278283