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A researcher used a sample of n = 30 individuals to determine whether there are any preferences among five brands of cars. Each individual test

A researcher used a sample of n = 30 individuals to determine whether there are any preferences among five brands of cars. Each individual test drives all five brands and selects their favourite. If the data are evaluated with a chi-square test using a = .01, then how large does the chi-square statistic need to be to reject the null hypothesis?

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