any help with this problem would be greatly appreciated!!

5 Exercise 8-47 Algo 6 An economist reports that 416 out of a sample of 1,600 middle-income American households actively participate in the stock market. points [ You may find it useful to reference the z table.] a. Construct the 90% 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.) eBook Confidence interval to References b. Can we conclude that the percentage of middle-income Americans who actively participate in the stock market is not 30%? O Yes, since the confidence interval contains the value 0.3. Yes, since the confidence interval does not contain the value 0.3. O No, since the confidence interval contains the value 0.3. O No, since the confidence interval does not contain the value 0.3