Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	7.08	0.00816496580927709	0.0199999999999996
2	7.0075	0.0349999999999997	0.0699999999999994
3	6.95	0.0294392028877596	0.0700000000000003
4	6.895	0.0191485421551268	0.04
5	6.885	0.0264575131106462	0.0600000000000005
6	6.8275	0.0250000000000002	0.0600000000000005
7	7.02	0.182391520270726	0.37
8	7.335	0.100166528008778	0.230000000000000
9	7.4375	0.0386221007541882	0.0899999999999999
10	7.33	0.202155056000751	0.470000000000001
11	7.6825	0.0170782512765994	0.04
12	7.705	0.0173205080756888	0.04
13	7.78	0.0816496580927728	0.180000000000001
14	7.9625	0.00957427107756318	0.0199999999999996
15	7.95	0.0316227766016840	0.0700000000000003
16	7.9975	0.0309569593683441	0.0699999999999994
17	8.255	0.0591607978309962	0.130000000000001
18	8.2975	0.0262995563967663	0.0500000000000007
19	8.3325	0.022173557826083	0.0499999999999989
20	8.3475	0.0170782512765990	0.0399999999999991
21	8.3075	0.0403112887414927	0.0899999999999999

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	0.196243669980619
beta	-0.0194582034948782
S.D.	0.0214542573107352
T-STAT	-0.9069623437928
p-value	0.375786211337053

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	-0.664384156956888
beta	-1.35569543353142
S.D.	2.6170793601752
T-STAT	-0.518018465225551
p-value	0.610425099648921
Lambda	2.35569543353142