From Fortune magazine (March 1997), 10 of the 431 companies studied are listed below. The total returns

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From Fortune magazine (March 1997), 10 of the 431 companies studied are listed below. The total returns for the 10 year's prior to 1996 and also for 1996 are listed. Find a 95% confidence interval for the mean change in percent return to investors.

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Fundamentals of Aerodynamics

ISBN: 978-0070016798

2nd Edition

Authors: J. Anderson

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Question Posted: Feb 04, 2011 06:47 AM

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From Fortune magazine (March 1997), 10 of the 431 companies studied are listed below. The total returns

Question:

Total Return to Investors 1986-96 Company Coca-Cola 1996 29.8% 43.3% 25.4% 24.0% 88.3% 18.1% 131.2% 34.0% 32.1% 6.2% 20.3% Mirage Resorts Merck Microsoft Johnson & Johnson Intel 27.9% 22.1% 44.5% 22.2% 43.8% 21.7% Pfizer Procter & Gamble Berkshire Hathaway S&P 500 21.9% 28.3% 11.8%

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Fundamentals of Aerodynamics

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