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economical concerns being so great, many people are no longer purchasing new vehicles, but are instead keeping their vehicles for a longer period of time, until they no longer work. The American Automobile Association is interested in determining if the average age of vehicles for Americans is different than six years. A random sample of 35 Americans was obtained. The average age of their vehicles was 6.2 years with standard deviation 1.2. a. Set up the null and alternative hypothesis: b. At the 1% significance level, use a CI to determine if the average age of vehicles for Americans is different than six years. Make sure and give your CI and your decision and conclusion.

economical concerns being so great, many people are no longer purchasing new vehicles, but are instead keeping their vehicles for a longer period of time, until they no longer work. The American Automobile Association is interested in determining if the average age of vehicles for Americans is different than six years. A random sample of 35 Americans was obtained. The average age of their vehicles was 6.2 years with standard deviation 1.2. a. Set up the null and alternative hypothesis: b. At the 1% significance level, use a CI to determine if the average age of vehicles for Americans is different than six years. Make sure and give your CI and your decision and conclusion.

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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economical concerns being so great, many people are no longer purchasing new vehicles, but are instead keeping their vehicles for a longer period of time, until they no longer work. The American Automobile Association is interested in determining if the average age of vehicles for Americans is different than six years. A random sample of 35 Americans was obtained. The average age of their vehicles was 6.2 years with standard deviation 1.2. a. Set up the null and alternative hypothesis: b. At the 1% significance level, use a CI to determine if the average age of vehicles for Americans is different than six years. Make sure and give your CI and your decision and conclusion.
Transcribed Image Text:economical concerns being so great, many people are no longer purchasing new vehicles, but are instead keeping their vehicles for a longer period of time, until they no longer work. The American Automobile Association is interested in determining if the average age of vehicles for Americans is different than six years. A random sample of 35 Americans was obtained. The average age of their vehicles was 6.2 years with standard deviation 1.2. a. Set up the null and alternative hypothesis: b. At the 1% significance level, use a CI to determine if the average age of vehicles for Americans is different than six years. Make sure and give your CI and your decision and conclusion.
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