Mathematics, 28.05.2021 20:10 mimithurmond03

A large department store examined a sample of 33 credit card sales and recorded the amounts charged for each of three types of credit cards: MasterCard, Visa, and Discover. Eleven MasterCard sales, twelve Visa, and ten Discover sales were recorded. The store used an ANOVA to test if the mean sales for each credit card were equal. What are the degrees of freedom for the F-statistic

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