The new tire you bought for your car is guaranteed to last an average of 25,000 kilometres. Your new tire wears prematurely, so you talk the tire store owner into surveying a random sample of 19 other tire buyers. When you survey them to see how long their tires lasted, and add your own disappointing result, you find an average of 24,000 kilometres. Assume that the tire life is a variable with a standard deviation of 500 kilo metres. Do you think you could successfully sue the company for false advertising? (Be careful!)