Standard Deviation-Mean Plot
Section	Mean	Standard Deviation	Range
1	120.5	5.68624070307733	13
2	132.25	26.5	51
3	145.25	9.84462628374824	21
4	128.75	7.18215380880508	16
5	136.25	24.8243831746128	48
6	146	11.6045967903528	26
7	124	5.71547606649408	13
8	132.75	23.6132025217532	45
9	143.25	11.0867789130417	25
10	119.75	5.1234753829798	11
11	129.25	20.6458228220626	39
12	130.5	14.3874945699382	33
13	108.75	6.65206734782504	15
14	110.5	19.2267175218930	37
15	112.5	8.88819441731559	19
16	98.5	5.5075705472861	12
17	101.75	18.8745860881769	36
18	109.5	5.25991127935317	12

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha	-5.20566341489421
beta	0.145437327222785
S.D.	0.123321789561046
T-STAT	1.17933195537024
p-value	0.255505709888587

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha	-5.7220708349054
beta	1.68435611712269
S.D.	1.17055879521537
T-STAT	1.43893337439132
p-value	0.169445002239552
Lambda	-0.684356117122686