An automobile manufacturer wishes to compare the lifetimes of two brands of tire. She obtains samples of seven tires each brand. On each of seven cars, she mounts one tire of each brand on each front wheel. The cars are driven until or 20% of the original tread remains. The distances, in miles, for each tire are presented in the following table. Can you conclude that there is a difference between the mean lifetimes of the two brands of tire? Car Brand 1 Brand 2 1 35824 2 45300 3 36240 4 32100 37210 48360 38200 5 6 7 34318 42280 35500 31950 38015 47800 33215 ute the value of the test statistic. Round the answer to three decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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An automobile manufacturer wishes to compare the lifetimes of two brands of tire. She obtains samples of seven tires of
each brand. On each of seven cars, she mounts one tire of each brand on each front wheel. The cars are driven until only
20% of the original tread remains. The distances, in miles, for each tire are presented in the following table. Can you
conclude that there is a difference between the mean lifetimes of the two brands of tire?
Car
1
2
3
4
5
6
7
Brand Brand 2
35824
34318
45300
42280
36240
35500
32100
31950
37210
38015
48360
38200
47800
33215
Compute the value of the test statistic. Round the answer to three decimal places.
Transcribed Image Text:Required information An automobile manufacturer wishes to compare the lifetimes of two brands of tire. She obtains samples of seven tires of each brand. On each of seven cars, she mounts one tire of each brand on each front wheel. The cars are driven until only 20% of the original tread remains. The distances, in miles, for each tire are presented in the following table. Can you conclude that there is a difference between the mean lifetimes of the two brands of tire? Car 1 2 3 4 5 6 7 Brand Brand 2 35824 34318 45300 42280 36240 35500 32100 31950 37210 38015 48360 38200 47800 33215 Compute the value of the test statistic. Round the answer to three decimal places.
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