A survey was recently made regarding the smoking habits of ABC and XYZ company employees. Out of 1000 employees from ABC, 227 were habitual smokers, 372 smoked occasionally, while 401 did not smoke. 500 employees from XYZ were also surveyed. Of the total respondents, 142 were habitual smokers, 177 smoked occasionally, while 181 did not smoke. Can we conclude using a 5% level of significance that the proportion of non-smokers in ABC and XYZ are the same? (1) Critical Values (Round off to 2 decimal places): (2) Test Statistic (Round off to 2 decimal places):

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A survey was recently made regarding the smoking habits of ABC and XYZ company employees. Out of 1000 employees from ABC, 227 were habitual smokers, 372
smoked occasionally, while 401 did not smoke. 500 employees from XYZ were also surveyed. Of the total respondents, 142 were habitual smokers, 177 smoked
occasionally, while 181 did not smoke. Can we conclude using a 5% level of significance that the proportion of non-smokers in ABC and XYZ are the same?
(1) Critical Values (Round off to 2 decimal places):
(2) Test Statistic (Round off to 2 decimal places):
(3) Conclusion:
(Type 'Reject HO' or 'Fail to Reject HO')
Transcribed Image Text:A survey was recently made regarding the smoking habits of ABC and XYZ company employees. Out of 1000 employees from ABC, 227 were habitual smokers, 372 smoked occasionally, while 401 did not smoke. 500 employees from XYZ were also surveyed. Of the total respondents, 142 were habitual smokers, 177 smoked occasionally, while 181 did not smoke. Can we conclude using a 5% level of significance that the proportion of non-smokers in ABC and XYZ are the same? (1) Critical Values (Round off to 2 decimal places): (2) Test Statistic (Round off to 2 decimal places): (3) Conclusion: (Type 'Reject HO' or 'Fail to Reject HO')
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