Tire manufacturers want to measure the difference of 3 types of tires is A B C. By each type of tyre testing with automatic engine 5 times. The data is the life of the tires, as follows:
To measure the tire manufacturer's tires three different types of ABC. In each tire test with the engine automatically get five times the lifetime of the tire.
The factory tire manufacturers to measure the difference of rubber 3 type is A B C by each tire test with the engine automatically 5 times, information age use of rubber as follows.