Many car companies provide maintenance services to new cars for a certain period of time, e.g., 2 years or 24000 miles. A car manufacturer is trying to reduce the cost of maintenance during this service period covered by the manufacturer. This will also reduce the cost of ownership for five years. Due to the better engine materials and quality lubricating oil, the oil change schedule has changed from 3000 miles to about 10,000 miles. In the past, the tire rotation schedule was about every 6000 miles. A tire manufacturer is testing if they can also provide tires that only need rotation every 10,000 miles. The tire manufacturer sells tire in all weather conditions and for all types of car brands. Therefore, to study the rotation effect on the tire wear, they have chosen four different regions: (1) cold weather like in Canada, (2) hot and humid weather like in Florida/Louisiana, (3) Medium cold and humidity weather like in Midwest, (4) medium heat and humidity like in California, and four different models: (1) Base, (2) LT, (3) LTZ, and (4) LIMITED from a car brand. If there is no significant difference in thread wears between the front and rear tires within the 10,000 miles, then the tire manufacturer can claim that their tires do not need to be rotated before 10,000 miles. The percentage of thread-wear-life worn out after 10,000 miles were measured from 4 cars equipped with new tires that are provided below. Data is provided both in this table: Model ... Weather 2 3 1 4 1 C= 16 D= 16 A= 20 B= 21 B= 19 C= 15 D= 15 A= 21 B= 22 C= 17 D= 15 A= 22 B= 21 A = Front Driver Side; B = Front Passenger Side; C = Rear Driver Side; D = Rear Passenger Side A= 24 D= 16 2 3 4 C= 15 Complete the ANOVA and provide a suitable conclusion.

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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Transcribed Image Text:Many car companies provide maintenance services to new cars for a certain period of time, e.g., 2 years or 24000 miles. A car manufacturer is trying to reduce the cost of maintenance during this service period covered by the manufacturer. This will also reduce the cost of ownership for five years. Due to the better engine materials and quality lubricating oil, the oil change schedule has changed from 3000 miles to about 10,000 miles. In the past, the tire rotation schedule was about every 6000 miles. A tire manufacturer is testing if they can also provide tires that only need rotation every 10,000 miles. The tire manufacturer sells tire in all weather conditions and for all types of car brands. Therefore, to study the rotation effect on the tire wear, they have chosen four different regions: (1) cold weather like in Canada, (2) hot and humid weather like in Florida/Louisiana, (3) Medium cold and humidity weather like in Midwest, (4) medium heat and humidity like in California, and four different models: (1) Base, (2) LT, (3) LTZ, and (4) LIMITED from a car brand. If there is no significant difference in thread wears between the front and rear tires within the 10,000 miles, then the tire manufacturer can claim that their tires do not need to be rotated before 10,000 miles. The percentage of thread-wear-life worn out after 10,000 miles were measured from 4 cars equipped with new tires that are provided below. Data is provided both in this table: Model ... Weather 1 2 3 4 1 C= 16 D= 16 A= 20 B= 21 15 D= 15 A= 24 A= 21 B= 22 C= 17 D= 16 D= 15 A= 22 B= 21 C= 15 A = Front Driver Side; B = Front Passenger Side; C = Rear Driver Side; D = Rear Passenger Side В- 19 С- 3 4 Complete the ANOVA and provide a suitable conclusion. Use the editor to format your answer

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