Layout Optimization of Flexible Manufacturing Cells Based on Fuzzy Demand and Machine Flexibility

Table 11

t-test: pairwise double sample mean analysis.

/	variable 1	variable 2
Mean	156669.9	139797.2
Variance	6.58E+08	7.49E+08
Observed value	20	20
Poisson correlation coefficient	0.962036	-
Hypothetical mean	0	-
df	19	-
t Stat	10.06289	-
P (T<=t) Single tail	2.38E-09	-
t Single tail critical	1.729133	-
P (T<=t) Double tail	4.76E-09	-
t Double tail critical	2.093024	-