Jocelyn Roberson

Business

4 July, 18:29

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. what is the 80% confidence interval to estimate the proportion of customers with oil tanks less than 100 gallons?

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