The following table shows the U.S. market share for automotive manufacturers in 2013. Also shown is the

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The following table shows the U.S. market share for automotive manufacturers in 2013. Also shown is the frequency of car purchases by manufacturer from a random sample of 220 customers in March of 2018 (www.motorintelligence.com).

a. Using ? = 0.10, perform a chi-square test to determine if the U.S. market share in the automotive industry has changed between 2013 and 2018.

b. Determine the p-value for the chi-square test statistic using Excel and interpret its meaning.

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Business Statistics

ISBN: 9780134685267

3rd Edition

Authors: Robert A. Donnelly

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Question Posted: Nov 05, 2019 05:30 AM

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The following table shows the U.S. market share for automotive manufacturers in 2013. Also shown is the

Question:

Market Share Frequency 2018 Manufacturer 2013 (%) 18.5 General Motors 39 Ford Motor 16.5 32 30 Toyota Chrysler 13.7 12.2 28 Honda 10.2 19 Other 28.9 72 Total 220

Step by Step Answer:

a H 0 US market share for cars did not change between 2013 and 2014 ...View the full answer

Business Statistics

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