Data for Chlorides determination 																			
Qtest		Q			Confidence Interval						Student's CI							Grubbs Test	
32.56	30.1	0.351428571	Q1		30.1						30.1								
35.14	32.56				32.56						32.56							30.1	
34.1	33.33				33.33						33.33							32.56	
33.33	34.1				34.1						34.1							33.33	
37.1	34.45				34.45						34.45							34.1	
34.45	35.12				35.12						35.12							34.45	
35.12	35.14				35.14						35.14							35.12	
30.1	37.1	0.28	Q1		37.1						37.1							35.14	
alpha=	0.05																	37.1	
range=	7				8														
Qcrit=	0.526										N=	8						Min=	30.1
					<30.1:35.14>						Mean	33.9875						Max=	37.1
Q1<Qcrit 	null hypothesis is accepted										S=	2.073911074						Mean=	33.9875
Q2<Qcrit 	null hypothesis is accepted																	St.D=	2.073911074
	no outliers										alpha	0.05							
											t=	2.364624252		s.e.m=	0.733238292			MIN=	1.874477671
														L1=	32.25			MAX=	1.500787589
														L2=	35.72			Crit=	2.13
																		MIN<Crit	null hypothesis is accepted
															"<35,25:35,72>"			MAX<Crit	null hypothesis is accepted
																			no outliers