"1. Supplier of furniture has promised that chairs he is sending will contain 80% of the 1st quality products, 15% 2nd quality products and 5% 3rd quality products."
"The control has revealed that there are 100 products of which 75 is the 1st quality, 10 is of the 2nd quality and 15 is of the 3rd quality products."

"Test at the level of significance 0,05 if the supplier has fulfill his promises."
##### Sheet/List 2 #####
2.	"Medical study gives data of occurance of bronchitis at the group of smokers and non-smokers, (table)."		
			
		Smokers	Non-smokers
	Bronchitis	160	210
	No bronchitis	190	450
			
	"Test the independence of bronchitis on the smoking of patients, take level of significance 0,05."		
##### Sheet/List 3 #####
3.	Test independence of 4 methods				
	" (M1, M2, M3, M4). On results on 5-degree scale."				
	"Test using level of significance0,05."				
					
	Method Result	M1	M2	M3	M4
	1	7	5	13	8
	2	16	25	14	9
	3	10	10	16	11
	4	11	16	9	12
	5	7	8	9	6
##### Sheet/List 4 #####
Test dobré shody.				
				
Test				
1.				
 H1: 				
(negace H0)				
2. Test criterion				
				
3. Admission interval: 				
				
  critical interval: 				
				
   4. Result				
				
Frequences				
				
Theoretical frequences				
				
				
				
				
	 =CHITEST(Aktuální;Očekávané)