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1. Suppose that you are interested in determining whether the advice given by a physician during...

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Statistics

1. Suppose that you are interested in determining whether theadvice given by a physician during a routine physical examinationis effective in encouraging patients to stop smoking. In a study ofcurrent smokers, one group of patients was given a brief talk aboutthe hazards of smoking and was encouraged to quit. A second groupreceived no talk related to smoking. All patients were given afollow-up exam. In the sample of 150 patients who had received thetalk, 23 reported that they had quit smoking. In the sample of 90patients that hadn’t received a talk 8 had ceased smoking.

a. Create a 2x2 table based on the data provided in thequestion.

b. Use Chi-square test to determine whether there is anassociation between receiving talks and quitting smoking. Choose α= 0.05.

Answer & Explanation Solved by verified expert
4.1 Ratings (580 Votes)
aQuit SmokingNot Quit SmokingTotalTalk2315023 127150No Talk890 8 8290Total31209240bH0There is no association between receiving talksand quitting smokingHaThere is an    See Answer
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