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a. Estimate the confidence interval of the average MARKETCAP of the NYSE stocks and that of the average MARKETCAP of NASDAQ stocks with 95% confidence.

b. Do the estimated confidence intervals in a. cover the true population means of MARKETCAP, respectively?

Please conduct the explanation using Excel data analysis.

Given Data : https://docs.google.com/spreadsheets/d/1QTSsPatz3E5gTdNCv2ulQbxhCM0soWeOZ57MYaFpCuE/edit?usp=sharing

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