A large tire manufacturing company has claimed that its top line tire will average more than 80,000 miles. If a consumer group wished to test this claim, the research hypothesis would be: Ha : μ 80,000 miles.

Question

A large tire manufacturing company has claimed that its top line tire will average more than 80,000 miles. If a consumer group wished to test this claim, the research hypothesis would be: Ha : μ > 80,000 miles.

Quizplus · Accepted Answer

The research hypothesis (Ha) is a statement that the parameter (in this case, the average mileage of the top line tire) is different from the null hypothesis (H0) value in a specific way (in this case, greater than 80,000 miles), which aligns with the consumer group's intention to test if the tire indeed averages more than 80,000 miles.

A Large Tire Manufacturing Company Has Claimed That Its Top