An economist reports that 300 out of a sample of 1,000 middle-income American households actively participate in the stock market [You may find it useful to reference the z table.]
Construct the 95% confidence interval for the proportion of middle-income Americans who actively participate in the stock market. (Round intermediate calculations to at least 4 decimal places. Round "z" value and final answers to 3 decimal places.)
Confidence interval ______ to ______.