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A small transportation company with only five buses wants to evaluate four type 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 tire are run for 24,000 kilometers, after which, the tread wear is measured. The data obtained are given below: Tread Wear (millimeters) of tires for the different buses Treatment (Tire Tynel

A small transportation company with only five buses wants to evaluate four type 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 tire are run for 24,000 kilometers, after which, the tread wear is measured. The data obtained are given below: Tread Wear (millimeters) of tires for the different buses Treatment (Tire Tynel

MATLAB: An Introduction with Applications
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 type 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 tire are run for 24,000 kilometers, after which, the tread wear is measured. The data obtained are given below: Tread Wear (millimeters) of tires for the different buses Treatment (Tire Type) Blocks(Buses) 1 2 3 4 13.3 28.4 16.1 20.3 2 20.7 11.9 17 3 19.1 20.8 11.8 1 17.1 18.1 4 21.5 14 5 12.8 25 16 20 Are there significant differences in the average tread wear for the four types of tire? Use a .05 level of significance.
Transcribed Image Text:A small transportation company with only five buses wants to evaluate four type 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 tire are run for 24,000 kilometers, after which, the tread wear is measured. The data obtained are given below: Tread Wear (millimeters) of tires for the different buses Treatment (Tire Type) Blocks(Buses) 1 2 3 4 13.3 28.4 16.1 20.3 2 20.7 11.9 17 3 19.1 20.8 11.8 1 17.1 18.1 4 21.5 14 5 12.8 25 16 20 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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