Russia has recently started a push for stronger smoking regulations much like those inWestern countries concerning cigarette advertising, smoking in public places, and soon. The DATAfile named Russia contains sample data on smoking habits of Russiansthat are consistent with those reported by the Wall Street Journal (the Wall StreetJournal, October 16, 2012). Analyze the data using Excel and answer the followingquestions.a. Develop a point estimate and a 95% confidence interval for the proportion of Russianswho smoke.b. Develop a point estimate and a 95% confidence interval for the mean annual per capitaconsumption (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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A: Let n=sample size, X=number of Carry disease. p^=x/n  X=167, n=200

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A:

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A: Given,n=4272X=897

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A: total number of female students =181 number of students who are left handed=15

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A:

Q: What is SSw?

A: Answer : By using ANOVA single factor for three groups,

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Q: Refer to Table 2 and comment on the shape of the distribution.

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Q: 1. Consider a sample with data values of 2.20; 1.98; 1.95; 2.27; 2.25; 2,24; 2.31 Compute the mean.

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.