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1. Smoking, 2008. Public health statistics indicate that 20.6% of American adults smoke cigarettes. Using the 68-95-99.7 Rule, describe the sampling distribution modelfor the proportion of smokers among a randomly selected group of 50 adults. Be sure to discuss your assumptions and conditions.
2. Vision. It is generally believed that nearsightedness affects about 12% of all children. A school district has registered 170 incoming kindergarten children.
a) Can you apply the Central Limit Theorem to describe the sampling distribution model for the sample proportion of children who are nearsighted? Check the conditions and discuss any assumptions you need to make.
b) Sketch and clearly label the sampling model, based on the 68-95-99.7 Rule.
c) How many of the incoming students might the school expect to be nearsighted? Explain.
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Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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