A randomly chosen group of 20,000 nonsmokers and one of 10,000 smokers were followed over a 10-year

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A randomly chosen group of 20,000 nonsmokers and one of 10,000 smokers were followed over a 10-year period. The following data relate the numbers of them that developed lung cancer during that period.

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Test the hypothesis that smoking and lung cancer are independent. Use the 1 percent level of significance.

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Introduction To Probability And Statistics For Engineers And Scientists

ISBN: 9780125980579

3rd Edition

Authors: Sheldon M. Ross

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Question Posted: Sep 14, 2024 04:22 AM

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A randomly chosen group of 20,000 nonsmokers and one of 10,000 smokers were followed over a 10-year

Question:

Smokers Lung cancer No lung cancer 62 Nonsmokers 14 Total 76 9,938 19,986 29.924 Total 10,000 20,000 30,000

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Introduction To Probability And Statistics For Engineers And Scientists

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