A study reported in Newsweek (December 23, 1991) involved a sample of 932 smoker

Question

A study reported in Newsweek (December 23, 1991) involved a sample of 932 smokers. Each individual received a nicotine patch, which delivers nicotine to the bloodstream but at a much slower rate than cigarettes do. Dosage was decreased to 0 over a 12-week period. Suppose that 242 of the subjects were still not smoking 6 months after treatment (this figure is consistent with information given in the article) Fstimate the proportion ot all smokers who, when given this treatment, would refrain from smoking tor at least 6 months. (Give the answer to three decimal places.)

Explanation / Answer

Ans:

There are 242 subjects who were still not smoking 6 months after the treatment.

There are total 932 subjects or persons in the sample.

So,Proportion of all smoker who,given this treatment,would refrain from smoking for atleast 6 months

=242/932=0.260

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