Thursday
December 18, 2014

Homework Help: statistics

Posted by c on Monday, May 16, 2011 at 7:50am.

one of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company beleives that the tire actually lasts more than 40,000 miles. A sample of 49 tires reveales that the mean number of miles is 45,000 miles with a standard deviation of 15,000 miles. Test the hypothesis with a 0.05 significance level. What is the decision rule? What is the calculated value of z? what is our decision?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistic - one of the major U.S. tire makers wishes to review its warranty for ...
Behavioral Statistics - I need someone to explain HOW to do this..I don't want ...
Physics - The warranty on a new tire says that an automobile can travel for a ...
Statistics - Wrong tire pressure can increase tire wear and decrease gas mileage...
statistics - Assume that Acme Tires sells their high performance tires for $180 ...
statistics - The Sledge Tire and Rubber Company plans to warranty its new ...
Geometry check my answer? - The diameter of a car tire is approximately 0....
math - On Saturday, Alberto filled his right rear tire with air at the gas ...
statistics - Please help asap! A tire company is considering a tire replacement ...
STATS - The top selling Red and Voss tire is rated 70,000 miles means nothing. ...

Search
Members