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The manufacturer of a particular brand of tires claims they average at least 82,000 km before needing to be replaced. From past studies of this tire, it is known that the population standard deviation is 12,900 km. A survey of tire owners was conducted to determine if the mileage of the tires is lower than 82,000 km. From the 32 tires sampled, the mean lifespan was 79,500 km. Testing at a = 10%, can we prove that the data is inconsistent with the manufacturers claim? %3D A. We should use a test. B. What are the correct hypotheses? Но: (и H1: H < Based on the hypotheses, find the following (round correct to at least 2 decimal places): C. Test Statistic = D. Critical Value = (note the direction of H1) %3D E. The correct decision is to Fail to reiect the null hypothesis

The manufacturer of a particular brand of tires claims they average at least 82,000 km before needing to be replaced. From past studies of this tire, it is known that the population standard deviation is 12,900 km. A survey of tire owners was conducted to determine if the mileage of the tires is lower than 82,000 km. From the 32 tires sampled, the mean lifespan was 79,500 km. Testing at a = 10%, can we prove that the data is inconsistent with the manufacturers claim? %3D A. We should use a test. B. What are the correct hypotheses? Но: (и H1: H < Based on the hypotheses, find the following (round correct to at least 2 decimal places): C. Test Statistic = D. Critical Value = (note the direction of H1) %3D E. The correct decision is to Fail to reiect the null hypothesis

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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The manufacturer of a particular brand of tires claims they average at least 82,000 km before needing to be replaced. From past studies of this tire, it is known that the population standard deviation is 12,900 km. A survey of tire owners was conducted to determine if the mileage of the tires is lower than 82,000 km. From the 32 tires sampled, the mean lifespan was 79,500 km. Testing at a = 10%, can we prove that the data is inconsistent with the manufacturers claim? A. We should use a test. B. What are the correct hypotheses? Ho: H H1: (H Based on the hypotheses, find the following (round correct to at least 2 decimal places): C. Test Statistic = D. Critical Value (note the direction of H1) E. The correct decision is to Fail to reject the null hypothesis
Transcribed Image Text:The manufacturer of a particular brand of tires claims they average at least 82,000 km before needing to be replaced. From past studies of this tire, it is known that the population standard deviation is 12,900 km. A survey of tire owners was conducted to determine if the mileage of the tires is lower than 82,000 km. From the 32 tires sampled, the mean lifespan was 79,500 km. Testing at a = 10%, can we prove that the data is inconsistent with the manufacturers claim? A. We should use a test. B. What are the correct hypotheses? Ho: H H1: (H Based on the hypotheses, find the following (round correct to at least 2 decimal places): C. Test Statistic = D. Critical Value (note the direction of H1) E. The correct decision is to Fail to reject the null hypothesis
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