Russia has recently started a push for stronger smoking regulations much like those in West- ern countries concerning cigarette advertising, smoking in public places, and so on. The DATAfile named Russia contains sample data on smoking habits of Russians that are con- sistent with those reported by The Wall Street Journal (The Wall Street Journal, October 16, 2012). Analyze the data using Excel and answer the following questions.
a. Develop a point estimate and a 95% confidence interval for the proportion of Russians who smoke.
b. Develop a point estimate and a 95% confidence interval for the mean annual per capita consumption (number of cigarettes) of a Russian.
c. For those Russians who do smoke, estimate the number of cigarettes smoked per day.
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