Recently,a Major Tire Manufacturer Stated in Its Advertising That Its

Multiple Choice

Recently,a major tire manufacturer stated in its advertising that its tires with a new tire tread design will last more than 50,000 miles on average.A consumer agency collected a subset of these tires and tested them in very controlled conditions.Based on this test,the agency concluded that the manufacturer was justified in making this claim.The process described is an example of:

A) descriptive statistics.
B) hypothesis testing.
C) statistical inference.
D) Both B and C are correct.