The Minimum sample size table is attached below
Answer:

Step-by-step explanation:
From the question we are told that:
Confidence Interval 
Variance 
Generally going through the table the 
Minimum sample size is

 
        
             
        
        
        
Answer:
F. 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
A number that can be made by dividing two integers (an integer is a number with no fractional part). The word comes from "ratio". But π (pi) is not a rational number, it is an "Irrational Number".
Step-by-step explanation:
mark me please 
 
        
                    
             
        
        
        
Answer:
x=2.66
Step-by-step explanation:
6x=60-10y-8z
x=(60-10*2-8*3)÷6 
x=(60-20-24)/6=16/6=2.66