A random sample of 160 car purchases are selected and categorized by age. The results are listed below. The age distribution of drivers for the given categories is​ 18% for the under 26​ group, 39% for the 26-45 group, 31% for the​ 45-65 group, and​ 12% for the group over 65. Find the critical value χ2α to test the claim that all ages have purchase rates proportional to their driving rates. Use α=0.05.Round to three decimal places.   Age  Under 26  26-45  46-65  Over 65 Purchases  66       39       25        30

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