Answer:
21
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B cause it righrhjeueudjss
 
        
                    
             
        
        
        
Answer:
The population proportion is estimated to be with 99% confidence within the interval (0.1238, 0.2012).
Step-by-step explanation:
The formula for estimating the population proportion by a confidence interval is given by:

Where:
 is the sample's proportion of success, which in this case is the people that regularly lie during surveys,
 is the sample's proportion of success, which in this case is the people that regularly lie during surveys,
 is the critical value needed to find the tails of distribution related to the confidence level,
 is the critical value needed to find the tails of distribution related to the confidence level,
 is the sample's size.
 is the sample's size.
<u>First</u> we compute the  value:
 value:

<u>Next</u> we find the z-score at any z-distribution table or app (in this case i've used StatKey):

Now we can replace in the formula with the obtained values to compute the confidence interval:

 
        
             
        
        
        
The ratio is 0.394 cm. / 1 in.