n automobile manufacturer wants to compare the lifetime of two brands of tire. She obtains a sample of five tires of each brand. On each of five cars, she mounts one tires of each brand on each from wheel. 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. Sample1=Brand A, Sample2=Brand B Car BrandA BrandB 1 36.1 42.5 2 24.1 32.8 3 39.8 38.8 4 41.2 35.5 5 28.5 29.3 Determine if the alternative hypothesis is "right", "left" or "two-tailed" to test that the mean lifetime of Brand B tires is greater than that of Brand A?
n automobile manufacturer wants to compare the lifetime of two brands of tire. She obtains a sample of five tires of each brand. On each of five cars, she mounts one tires of each brand on each from wheel. 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. Sample1=Brand A, Sample2=Brand B Car BrandA BrandB 1 36.1 42.5 2 24.1 32.8 3 39.8 38.8 4 41.2 35.5 5 28.5 29.3 Determine if the alternative hypothesis is "right", "left" or "two-tailed" to test that the mean lifetime of Brand B tires is greater than that of Brand A?
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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An automobile manufacturer wants to compare the lifetime of two brands of tire. She obtains a sample of five tires of each brand. On each of five cars, she mounts one tires of each brand on each from wheel. 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.
Sample1=Brand A, Sample2=Brand B
| Car | BrandA | BrandB |
| 1 | 36.1 | 42.5 |
| 2 | 24.1 | 32.8 |
| 3 | 39.8 | 38.8 |
| 4 | 41.2 | 35.5 |
| 5 | 28.5 | 29.3 |
Determine if the alternative hypothesis is "right", "left" or "two-tailed" to test that the mean lifetime of Brand B tires is greater than that of Brand A?
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