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 63 had an oil tank that was less than 100 gallons. The 80% confidence interval to estimate the proportion of customers with oil tanks less than 100 gallons is ________.A) (0.276, 0.354 )
B) (0.183, 0.447 )
C) (0.216, 0.414 )
D) (0.151, 0.480 )
A
Business
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