The answer is 6 whole number and 3\4 cannot be the whole number.
        
             
        
        
        
Answer:
a) yes 
b) ( 0.0280 , 0.1720 ) 
c) No 
Step-by-step explanation:
A) Determine if the sample sizes are large enough
where : 
ages between ( 18 to 29 ) 
p1 = 0.48 ,
n1 = 178 ,      ∴ n1 P1 = 85.44  also n1 ( 1 - p1 ) = 92.56 
ages between ( 50 to 64 ) 
P2 = 0.03 ,
 n2 = 427     ∴ n2p2 = 12.81     also n2( 1 -p2 ) = 414.19 
<em>since all the values ae above 10 we can conclude that the sample sizes are large enough </em>
<em>answer = yes </em>
<u>B)  Estimate the difference in the proportion of adult Americans aged 18 to 29</u>
= ( 0.0280 , 0.1720 ) 
attached below is the detailed solution 
C)  zero is not included in the interval
      
 
        
             
        
        
        
Answer:
31 mm 
Step-by-step explanation:
5mm + 2mm + 8mm + 16mm