A study by Angus Reid Strategies shows different attitudes toward global warming (GW) (www.angus-reid.com/wp-content/uploads/archivedpdf/2008.06.25_GreenShift_1.pdf). The table that follows summarizes different attitudes according to different age groups. For instance, 20% of Canadian adults are both above 55 and convinced that global warming is occurring.

An environmental organization wants to claim that many more people are convinced global warming is occurring than not fully convinced it is occurring. It asks you as its statistician to select one of the age groups in the table above and draw a graph that demonstrates this point most clearly.

a) Which age group would you select? Why?

b) Which ethical issue, if any, does this raise according to the ASA Ethical Guidelines in Appendix C? Why?

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Age 55+ 18–34 35-54 Convinced GW Is Occurring 24% 18% 20% Not Fully Convinced GW Is Occurring GW Is Not Occurring 6% 12% 13% 2% 2% 1% 1% Not Sure 0% 1% Attitude