What is the working solution to :1. A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needsto be replaced. From past studies of this tire, the standard deviation is known to be 8000. A surveyof owners of that tire design is conducted. From the 28 tires surveyed, the average lifespan was46,500 miles with a standard deviation of 9800 miles. Do the data support the claim at the 5%level?

Question

What is the working solution to :1.	A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needsto be replaced. From past studies of this tire, the standard deviation is known to be 8000. A surveyof owners of that tire design is conducted. From the 28 tires surveyed, the average lifespan was46,500 miles with a standard deviation of 9800 miles. Do the data support the claim at the 5%level?