Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	566.25	1.70782512765993	4
2	573.25	12.5266382827424	26
3	560	1.41421356237310	3
4	555.5	5.19615242270663	11
5	557.75	15.9033539439537	34
6	547.75	3.30403793359983	7
7	532.25	9.8784276751583	23
8	535	17.2046505340853	38
9	519	2.16024689946929	5
10	492.25	12.3389626792531	27
11	488.75	18.6793111935817	41
12	477.75	4.99165971062398	11
13	450.25	16.3579746097533	37
14	438.25	19.6022957839127	45
15	422.5	5.25991127935317	12
16	394.25	16.5201896679992	38
17	371.75	20.6458228220626	47
18	360.75	8.65544144839919	19
19	325	21.1187120819429	47
20	309	21.5251790546173	49
21	300.5	9.18331820930394	22
22	265.75	18.9626826512847	42
23	247.75	23.7679756535273	53
24	242.25	7.58836829188814	18
25	198.75	21.7159695462425	49
26	179.75	25.0383039894212	57
27	173.5	11.7898261225516	25
28	129.75	27.5484421822118	62
29	98.5	26.5894716006167	60
30	93.5	7.32575365861197	17

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	24.3515533484539
beta	-0.0277056680474883
S.D.	0.00806211730842057
T-STAT	-3.4365250451703
p-value	0.00185862657440863

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	6.42450345077569
beta	-0.695149180323769
S.D.	0.263952931541968
T-STAT	-2.63361037993716
p-value	0.0136019657463000
Lambda	1.69514918032377