The owner of a large eet of minibuses is trying to estimate his costs for next year's operations. One major cost is fuel purchases. To estimate fuel purchases, the owner needs to know the total distance his minibuses will travel next year, the cost of a gallon fuel, and the fuel mileage of his minibuses. The owner has been provided with the first two gures (distance estimate and cost of a gallon of fuel). However, because of the high cost of gasoline, the owner has recently converted his minibuses to operate on propane. He has measured and recorded the propane mileage (in miles per gallon) for 60 minibuses. a Referring to the above scenario, identify the following items: - The population - The parameter the owner needs - The sample - The statistics to be studied (10 marks) b Describe briefly how the statistic will produce the kind of information the owner wants.