Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	8.2075	0.0095742710775641	0.0200000000000014
2	8.2025	0.0262995563967661	0.0600000000000005
3	8.315	0.0369684550213647	0.0899999999999999
4	8.315	0.0772442015083766	0.16
5	8.465	0.00999999999999979	0.0199999999999996
6	8.3775	0.0556027577253739	0.129999999999999
7	8.495	0.0704745817062193	0.149999999999999
8	8.5175	0.0758836829188812	0.180000000000000
9	8.2025	0.122031416719904	0.280000000000001
10	7.8525	0.0262995563967657	0.0599999999999996
11	8.02	0.102306728354819	0.230000000000000
12	8.0475	0.0684957419601149	0.159999999999999
13	8.1	0.116045967903528	0.260000000000001
14	8.1825	0.0170782512765990	0.0399999999999991
15	8.135	0.0838649708360608	0.180000000000000
16	8.12	0.0559761854124894	0.130000000000001
17	8.2625	0.00957427107756318	0.0199999999999996
18	8.19	0.0883176086632783	0.190000000000000
19	8.325	0.119023807142381	0.270000000000000

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	0.174072828452625
beta	-0.0136652438136781
S.D.	0.0548329653423773
T-STAT	-0.249215845401617
p-value	0.80617997071626

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	3.30828457974671
beta	-3.02750639407862
S.D.	10.3230794416440
T-STAT	-0.29327551058703
p-value	0.772861529958183
Lambda	4.02750639407862