(Answered) An economist reports that 1144 out of a sample of 2600

Statistics

An economist reports that 1,144 out of a sample of 2,600 middle-income American households actively participate in the stock market,

Construct a 99% confidence interval for the proportion of middle-income Americans who actively participate in the stock market. (Round intermediate calculations to 4 decimal places, "z" value to 2 decimal places, and final answers to 3 decimal places.)

Confidence interval to

Can we conclude that the proportion of middle-income Americans who actively participate in the stock market is not 48%?

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