Question

Asked Jan 13, 2020

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Smoking Stopped In a program designed to help patients stop smoking, 198 patients were given sustained care, and 82.8% of them were no longer smoking after one month (based on data from “Sustained Care Intervention and Postdischarge Smoking Cessation Among Hospitalized Adults,” by Rigotti et al., Journal of the American Medical Association, Vol. 312, No. 7). Use a 0.01 significance level to test the claim that 80% of patients stop smoking when given sustained care. Does sustained care appear to be effective?

Step 1

According to the provided data, in a stop smoking program, 198, *n* patients were given sustained care and 82.8% (0.828), sample proportion, of them stopped smoking after one month.

The null and alternative hypotheses are;

Step 2

The value of test statistic can be obtained as:

Step 3

The level of significance is provided as 0.01.

Th...

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