John Charleston owns a heating oil delivery company that services 1,540 residences. John would like to estimate the number of customers that have oil storage tanks that are less than 100 gallons in capacity. A random sample of 200 customers found that 48 had an oil tank that was less than 100 gallons. The 99% confidence interval to estimate the proportion of customers with oil tanks less than 100 gallons is ________. A) (0.212, 0.268) B) (0.225, 0.255) C) (0.167, 0.313) D) (0.184, 0.296)

MATLAB: An Introduction with Applications
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John Charleston owns a heating oil delivery company that services 1,540 residences. John would like to estimate the number of customers that have oil storage tanks that are less than 100 gallons in capacity. A random sample of 200 customers found that 48 had an oil tank that was less than 100 gallons. The 99% confidence interval to estimate the proportion of customers with oil tanks less than 100 gallons is ________.

A) 

(0.212, 0.268)

B) 

(0.225, 0.255)

C) 

(0.167, 0.313)

D) 

(0.184, 0.296)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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