Based on the results of a survey questionnaire, 400 individuals were classified as politically conservative, moderate, or liberal. In addition, each person was classified by age, as shown in the following table.

Is there sufficient evidence to reject the hypothesis that €œPolitical preference is independent of age€? Use a = 0.01
a. Solve using the p-value approach.
b. Solve using the classical approach

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Age Group 20-35 36-50 Older Than 50 Totals 80 210 110 Scar 20 80 Lonservative Moderate Liberal Total 40 85 25 20 45 45 140 150