Answered: Tire wear: An automobile manufacturer…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Part 2: please show step by step

part 3 : rejects or do not rejects

part 4: there is enough or there is not enough

Transcribed Image Text:Tire wear: An automobile manufacturer wants to compare the lifetimes of two brands of tires. She obtains samples of seven tires of each brand. On each of seven cars, she mounts one tire of each brand on the front wheels. The cars are driven until only 20% of the original tread remains. The distances, in thousands of miles, for each tire are presented in the following table. Car 1 2 3 4 5 6 7 Brand A 36.4 45.2 36.7 32.6 37.6 48.2 39.0 Brand B 34.8 42.4 35.6 31.2 38.3 47.4 33.6 Brand A is more expensive than Brand B. Can you conclude that the mean lifetime of Brand A tires is greater than that of Brand B? Use the a = 0.05 level of significance. Let µ₁ represent the mean lifetime of Brand A tires and μ = μ₁ ¯ µ₂.

Transcribed Image Text:Part 2 of 4 P= Part 3 of 4 Part 4 of 4 There the null hypothesis Ho. enough evidence to conclude that the mean lifetime of Brand A tires is greater than that of Brand B.

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