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An auto magazine wants to review the tread mileage wear of two sports tires. We will compare the average tread wear before replacement between Micheline and Pirelli. As we don't know which brand as a higher average treadwear we will use a two-tailed test. The magazine randomly samples 44 Micheline tires and they had an average treadwear of 20,000 miles before replacement, with a standard deviation of 2,000 miles. There was a random sample of 48 Pirelli tires. The average tread wear of the 48 Pirelli tires was 21,000 miles with a standard deviation of 2,000 miles. Define the first population as the Micheline tires and the second population as the Pirelli tires. Using a 5% significance level determine if the brand competitors do not have an average equal tread wear. Give the hypotheses.

An auto magazine wants to review the tread mileage wear of two sports tires. We will compare the average tread wear before replacement between Micheline and Pirelli. As we don't know which brand as a higher average treadwear we will use a two-tailed test. The magazine randomly samples 44 Micheline tires and they had an average treadwear of 20,000 miles before replacement, with a standard deviation of 2,000 miles. There was a random sample of 48 Pirelli tires. The average tread wear of the 48 Pirelli tires was 21,000 miles with a standard deviation of 2,000 miles. Define the first population as the Micheline tires and the second population as the Pirelli tires. Using a 5% significance level determine if the brand competitors do not have an average equal tread wear. Give the hypotheses.

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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Question 8: give the conclusion.
An auto magazine wants to review the tread mileage wear of two sports tires. We will compare the average tread wear before replacement between Micheline and Pirelli. As we don't know which brand as a higher average treadwear we will use a two-tailed test. The magazine randomly samples 44 Micheline tires and they had an average treadwear of 20,000 miles before replacement, with a standard deviation of 2,000 miles. There was a random sample of 48 Pirelli tires. The average tread wear of the 48 Pirelli tires was 21,000 miles with a standard deviation of 2,000 miles. Define the first population as the Micheline tires and the second population as the Pirelli tires. Using a 5% significance level determine if the brand competitors do not have an average equal tread wear. Give the hypotheses.
Transcribed Image Text:An auto magazine wants to review the tread mileage wear of two sports tires. We will compare the average tread wear before replacement between Micheline and Pirelli. As we don't know which brand as a higher average treadwear we will use a two-tailed test. The magazine randomly samples 44 Micheline tires and they had an average treadwear of 20,000 miles before replacement, with a standard deviation of 2,000 miles. There was a random sample of 48 Pirelli tires. The average tread wear of the 48 Pirelli tires was 21,000 miles with a standard deviation of 2,000 miles. Define the first population as the Micheline tires and the second population as the Pirelli tires. Using a 5% significance level determine if the brand competitors do not have an average equal tread wear. Give the hypotheses.
Give the conclusion. O Reject the null since the test statistic fall in the rejection region. O Fail to reject the null since the test statistic does not fall in the rejection region.
Transcribed Image Text:Give the conclusion. O Reject the null since the test statistic fall in the rejection region. O Fail to reject the null since the test statistic does not fall in the rejection region.
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