Outdoor Adventure, Inc. has produced two new tires, Racer Standard and Racer Premium. The estimated mean lifetime mileag

[answerhappygod]

Outdoor Adventure, Inc. has produced two new tires, Racer
Standard and Racer Premium. The estimated mean lifetime mileage of
Racer Standard is 43,000 miles and Racer Premium is 46,000.
Management also believes that the standard deviation for Racer
Standard is 6,800 miles and Racer Premium is 5,200 and that both
mileages are normally distributed.
1) Based on the above results, how should the company
advertise the durability of the tires?

If the management would like to advertise a tire mileage guarantee
such that approximately no more than
10% of the tires would obtain mileage low enough to qualify for the
guarantee. From your results, what tire
mileages would you recommend for the guarantee for each type of
tire?