# Question: In a University of Wisconsin UW study about alcohol abuse

In a University of Wisconsin (UW) study about alcohol abuse among students, 100 of the 40,858 members of the student body in Madison were sampled and asked to complete a questionnaire. One question asked was, “On how many days in the past week did you consume at least one alcoholic drink?”

a. Identify the population and the sample.

b. For the 40,858 students at UW, one characteristic of interest was the percentage who would respond “zero” to this question. For the 100 students sampled, suppose 29% gave this response. Does this mean that 29% of the entire population of UW students would make this response? Explain.

c. Is the numerical summary of 29% a sample statistic, or a population parameter?

a. Identify the population and the sample.

b. For the 40,858 students at UW, one characteristic of interest was the percentage who would respond “zero” to this question. For the 100 students sampled, suppose 29% gave this response. Does this mean that 29% of the entire population of UW students would make this response? Explain.

c. Is the numerical summary of 29% a sample statistic, or a population parameter?

## Answer to relevant Questions

For several years, the General Social Survey asked subjects, “How often have you felt as though you were in touch with someone when they were far away from you?” Of 3887 sampled subjects who had an opinion, 1407 said ...Go to the General Social Survey Web site, http://sda.berkeley.edu/GSS. Enter HEAVEN as the row variable and then click Run the Table. When asked whether or not they believed in heaven, what percentage of those surveyed said ...The Environmental Protection Agency (EPA) uses a few new automobiles of each model every year to collect data on pollution emissions and gasoline mileage performance. For the Honda Accord model, identify what’s meant by ...Refer to the previous exercise. a. Give an example of five hike lengths such that the mean and median are equal. b. Give an example of five hike lengths such that the mode is 2, the median is 3, and the mean is larger than ...Revisit the sugar data for breakfast cereals that are given in the table. a. Interpret the box plot in the figure (MINITAB output) by giving approximate values for the five-number summary. b. What does the box of the box ...Post your question