Which confidence level would produce the widest interval when estimating the mean of a population based on the mean and standard
 deviation of a sample of that population? A. 60% B. 70% C. 80% D. 90% 
 
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
D. 90%
Step-by-step explanation:
it is within the 90th percentile
 
                                
             
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Point B is located at point (4, -2)
        
             
        
        
        
$22.50
You can get this by dividing the new total by 116%, which is how much of the bill was paid. 
        
             
        
        
        
        
Answer:
3 hours
Step-by-step explanation:
4.5*(2/3)
= 3 hours
 
        
                    
             
        
        
        
The answer is 14 you just have to substitute x with the given number and finish the equation