Table 5.

F-test and t-test double sample analysis of variance.

Model	Double Sample Analysis	Index	Predicted Value	Measured Value
SR-NC-MLR	F-test	average	149.861	150.334
		variance	3478.621	3464.791
		observed value	83	83
		df	82	82
		F	1.004
		P (F <= f) one-tailed	0.493
		F (one-tailed critical value)	1.441
	t-test	average	149.861	150.334
		variance	3478.621	3464.791
		observed value	83	83
		pooled variance	3471.706
		assumed mean difference	0
		df	164
		t Stat	0.0517
		P (T <= t) one-tailed	0.479
		t (one-tailed critical value)	1.654
		P (T <= t) two-tailed	0.959
		t (two-tailed critical value)	1.975