Answered: A small transportation company with…

Name: A small transportation company with only five buses wants to evaluate
Uploaded: 2024-03-20T07:07:00.000Z
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Description: A small transportation company with only five buses wants to evaluate four types of tires with respect to wear. Each of the buses runs a different route so that the terrain and driving conditions differ from bus to bus. To control the effect of the v

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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A small transportation company with only five buses wants to evaluate four types of tires with respect to wear. Each of the buses runs a different route so that the terrain and driving conditions differ from bus to bus. To control the effect of the variable, a randomized block design is appropriate. Each bus constitute s a block, and each tire type constitutes a treatment. One tire of each type is placed on each bus, with the wheel positions being assigned randomly. The tires are run for 24,000 kilometers, after which, the tread wear is measured. The data obtained are given below:

Are there significant differences in the average tread wear for the four types of tire? Use a .05 level of significance.
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Tread Wear (millimeters) of tires for the different buses
Treatment (Tire Type)
Blocks(Buses)
1
1
3
4
16.1
11.9
13.3
28.4
20.3
20.7
17
19.1
11
20.8
11.8
17.1
21.5
14
18.1
12.8
25
16
20
N345

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