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1. According to a study by the Federal Reserve Board, the average interest rate charged on...

1. According to a study by the Federal Reserve Board, the average interest rate charged on credit card debt is more than 14%. A sample of 12 credit cards has an average rate of 15.56% and standard deviation of 2.1%. Is it reasonable to conclude with 95% confidence that the Fed is right? Please perform all six steps for hypothesis testing

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