Answer:

Step-by-step explanation:
Give data:






for 95% confidence interval

 from standard z- table
  from standard z- table
confidence interval for P_1  and P_2 is



confidence interval is


 
        
             
        
        
        
Answer:
 The answer is 2 not 11.6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
530.60 for interest on 3 months you don't make any payments
 
        
             
        
        
        
In triangle, ABD, 
AD²= AB²+BD²
AB² = AD²-BD²
AB² = 18²-9² = 324-81 = 243
AB = √243 
In triangle, ABC, 
AC² = AB²+BC²
AC² = (√243)²+(13)²
AC² = 243+169
AC = √412
AC = 20.29