A manufacturer of watches would like to examine preferences for digital versus analog watches. A sample of n=200 people is selected, and these individuals are classified by age and preference. The manufacturer would like to know whether there is a relationship between age and watch preference. The observed frequencies (fo) are as follows:
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Digital
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Analog
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Undecided
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Totals
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Younger than 30
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90
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40
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10
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140
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30 or older
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10
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40
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10
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60
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Column totals
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100
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80
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20
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n=200
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a. Conduct all 6 steps of appropriate statistic. Be sure to label all six steps.
b. Calculate and interpret the effect size for this test.
c. Report the statistics as you would in a journal article.