Analytical Validation of Smartphone Spectroscopic Technic Used in an Educational Kinetic Study

Table 1

Random character of the responses of 3 iodine solutions for 4 days.

Day		Absorbance Aij
1		0.255		0.230		0.238
2		0.255		0.219		0.252
3		0.244		0.241		0.250
4		0.246		0.251		0.239
Median	R	Risk α	( n)/2		Rα/2		R1 − (α/2)
0.245	8	5%	6		4		10
Decision
If R < Rα/2			Monotone derive
If R > R1 − (α/2)			Fast oscillation
If Rα/2 < R < R1 − (α/2)			Random distribution
Conclusion
The distribution is random