2. [20' pointszhe Canadian Automobile Association (CAR) conducted a survey of the general condition of the cars rented to the public by Hertz, Axis, National and Budget. (3AA officials evaluate each company's cars using a demerit points system. Each car starts with a perfect score of [1 points and incurs demerit points for each discrepancy noted by the inspectors. One measure of the overall condition of a company's cars is the mean of all scores received by the company (ie, the company's eet mean score]. To estimate the fleet mean score of each rental car company, (3AA officials randomly selected 10 major airports and then randomly selected for inspection 10 cars from each company (ie, a random sample of n = 100 cars from each company's eet was drawn and inspected)