Quality and Performance Evaluation of Jatropha Oil Blended with Kerosene for Cooking Stoves in Ethiopia

Table 4

Statistical test of the effect of blending on Jatropha oil viscosity.

	T-test	value	Std. error mean	std. deviation	95% confidence interval of the difference
					Lower	Upper
Fuel type	3.87	0.030	6.45	12.90	0.44	4.55
Viscosity (cSt)	4.28	0.023	2.40	4.81	2.64	17.95