Fortune magazine (March 1997) reported the total returns to investors for the 10 years prior to 1996 and also for 1996 for 431 companies. The total returns for 10 of the companies are listed below. Using 0.05 level of significance, test the difference between mean change in percent return to investors. Total Return to Investors 1986-96 1996 Company Coca-Cola Mirage Resorts Merck 29.8% 27.9% 22.1% Microsoft 44.5% Johnson & Johnson 22.2% 43.8% 21.7% 21.9% 28.3% 11.8% Intel Pfizer Procter & Gamble Berkshire Hathaway S&P 500 43.3% 25.4% 24.0% 88.3% 18.1% 131.2% 34.0% 32.1% 6.2% 20.3%

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A: h). n = 81     p = 0.10

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A: Amarjeet 2mr find x.

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