In a Midwestern state an automobile insurance company has a

In a Midwestern state an automobile insurance company has a large number of customers. From company files it is known that 86% of the customers have only the state minimums for insurance. An official with the state board of insurance is going to take a random sample of 100 accounts to review. Find the standard deviation of the sample proportion in this situation.

Give your answer to 4 decimal places. For help on how to input a numeric answer, please see \"Instructions for inputting a numeric response.\"

Solution

Here,          
n =    100      
p =    0.86      
          
s = standard deviation = sqrt(p(1-p)/n) = sqrt(0.86*(1-0.86)/100)  

s = 0.034698703 = 0.0347 [ANSWER]