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5. An automotive research group collected the data below that shows the number of foreign and domestic cars purchased by consumers under 30 years old and 30 years and above. (a) Obtain the expected frequencies for the observed frequencies (b) Obtain the chi-square parameter (c) What is the number of degrees of freedom? (d) Test at the 0.05 level of significance if the type of car bought is independent of the age of the buyer. Type of Car Under 30 30 and above Total Domestic 60 80 140 Foreign 40 20 60 Total 100 100 2000

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