Crash testing is a highly expensive procedure to evaluate the ability of an automobile
Chapter 5, Problem 5(choose chapter or problem)
Crash testing is a highly expensive procedure to evaluate the ability of an automobile to withstand a serious accident. A simple random sample of 12 small cars were subjected to a head-on collision at 40 miles per hour. Of them 8 were “totaled,” meaning that the cost of repairs is greater than the value of the car. Another sample of 15 large cars were subjected to the same test, and 5 of them were totaled. Find a \(95 \%\) confidence interval for the difference in the proportions of small cars and large cars that are totaled.
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Text Transcription:
95%
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