1st Edition

ISBN: 9781938168208

Author: Barbara Illowsky, Susan Dean

Publisher: OpenStax College

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Chapter 11, Problem 106H

The Insurance Institute for Highway Safety collects safety information about all types of cars every year, and publishes a report of Top Safety Picks among all cars, makes, and models. Table 11.58 presents the number of Top Safety Picks in six car categories for the two years 2009 and 2013. Analyze the table data to conclude whether the distribution of cars that earned the Top Safety Picks safety award has remained the same between 2009 and 2013. Derive your results at the 5% significance level.

Year \ CarType	Small	Mid-Size	Large	SmallSUV	Mid-SizeSUV	LargeSUV	RowTotal
2,009	12	22	10	10	27	6	87
2,013	31	30	19	11	29	4	124
Column Total	43	52	29	21	56	10	211

Table 11.58

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Chapter 11, Problem 105H

Chapter 11, Problem 107H

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