5.   A research team conducted a study of soft-drink preferences among residents in a test market prior to an advertising campaign for a new cola product. Of the participants, 130 are teenagers and 130 are adults. The researchers secured the following results:

                                                Cola                             Noncola

Teenagers                                  50                                 80

Adults                                       90                                  40

Calculate an appropriate measure of association, and decide how to present the results. How might this information affect the advertising strategy?

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