The article “Online Shopping Grows, But Department, Discount Stores Still Most Popular with Holiday Shoppers” (Gallup Poll Analyses, December 2, 2002) included the data in the accompanying table. The data are based on two telephone surveys, one conducted in November 2000 and one in November 2002. Respondents were asked if they were very likely, somewhat likely, not too likely, or not at all likely to do Christmas shopping online.

a. Construct a comparative bar chart. What aspects of the chart justify the claim in the title of the article that “online shopping grows?”

b. Respondents were also asked about the likelihood of doing Christmas shopping from mail order catalogues. Use the data in the accompanying table to construct a comparative bar chart. Are the changes in responses from 2000 to 2002 similar to what was observed for online shopping? Explain.

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Response Very likely Somewhat likely Not too likely Not at all likely Relative Frequency 2000 2002 .09 .15 .12 .14 .14 .12 .65 .59