A tire manufacturer has been producing tires with an average…
A tire manufacturer has been producing tires with an average life expectancy of 27,000 miles. Now the company is advertising that its new tires’ life expectancy has increased. To test the legitimacy of the advertising campaign, an independent testing agency tested a sample of 6 of their tires and has provided the following data. Use the 0.01 level of significance . Life Expectancy(In Thousands of Miles) 31 29 26 30 32 26