A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000 miles and a standard deviation of 2600 miles. He wants to give a guarantee for free replacement of tires that don't wear well How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question

answer the following

A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000
miles and a standard deviation of 2600 miles. He wants to give a guarantee for free replacement of tires that don't wear well.
How should he word his guarantee if he is willing to replace approximately 10% of the tires?
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table.
Tires that wear out by miles will be replaced free of charge.
(Round to the nearest mile as needed.)
Transcribed Image Text:A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 35,000 miles and a standard deviation of 2600 miles. He wants to give a guarantee for free replacement of tires that don't wear well. How should he word his guarantee if he is willing to replace approximately 10% of the tires? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Tires that wear out by miles will be replaced free of charge. (Round to the nearest mile as needed.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer