We know that smoking has all sorts of ill effects on people; among other things, there is evidence that it affects fertility. Researchers examined the effects of smoking and the ease with which women become pregnant. They took 586 who had planned pregnancies, and asked them how many menstrual cycles it had taken for them to become pregnant after discontinuing contraception. They also sorted the women into whether they were smokers or non-smokers. The data follow. 1 Cycle 2 Cycles 3 + Cycles Total Smokers 29 16 55 100 Nonsmokers 198 107 181 486 Total 227 123 236 586 Does smoking affect the ease with which women become pregnant? Test the hypothesis at α = 0.01.
We know that smoking has all sorts of ill effects on people; among other things, there is evidence that it affects fertility. Researchers examined the effects of smoking and the ease with which women become pregnant. They took 586 who had planned pregnancies, and asked them how many menstrual cycles it had taken for them to become pregnant after discontinuing contraception. They also sorted the women into whether they were smokers or non-smokers. The data follow. 1 Cycle 2 Cycles 3 + Cycles Total Smokers 29 16 55 100 Nonsmokers 198 107 181 486 Total 227 123 236 586 Does smoking affect the ease with which women become pregnant? Test the hypothesis at α = 0.01.
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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We know that smoking has all sorts of ill effects on people; among other things, there is evidence that it affects fertility. Researchers examined the effects of smoking and the ease with which women become pregnant. They took 586 who had planned pregnancies, and asked them how many menstrual cycles it had taken for them to become pregnant after discontinuing contraception. They also sorted the women into whether they were smokers or non-smokers. The data follow.
|
1 Cycle |
2 Cycles |
3 + Cycles |
Total |
Smokers |
29 |
16 |
55 |
100 |
Nonsmokers |
198 |
107 |
181 |
486 |
Total |
227 |
123 |
236 |
586 |
Does smoking affect the ease with which women become pregnant? Test the hypothesis at α = 0.01.
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