Answer:
Use photo math, it will explain it all in different forms
 
        
             
        
        
        
Answer:
n=42 adult men
Step-by-step explanation:
-The minimum sample size to get a desired margin of error, E is calculated using the formula:

-Given that  , we can substitute to solve for n in the above formula:
, we can substitute to solve for n in the above formula:

Hence, the desired minimum sample size, n is 42 adult men.
 
        
             
        
        
        
1) b. 8 
2) b. 15 
Do you need an explanation?