(Answered) An economist reports that 528 out of a sample of 2400

Economics

An economist reports that 528 out of a sample of 2,400 middle-income American households actively participate in the stock market.

1) Construct an 95% confidence interval of the proportion of middle-income Americans who actively participate in the stock market. (round intermediate calculations to 4 decimal places, "z"values to 2 places and final answers to 3 decimal places.

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