MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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(WMM11 9.47) 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.
Company
Соса-Сola
1986–96
1996
29.8%
27.9%
22.1%
44.5%
22.2%
43.8%
21.7%
43.3%
25.4%
24.0%
88.3%
18.1%
131.2%
Mirage Resorts
Merck
Microsoft
Johnson & Johnson
Intel
Pfizer
34.0%
21.9%
28.3%
11.8%
32.1%
6.2%
20.3%
Procter & Gamble
Berkshire Hathaway
S&P 500
Note: You have to properly import the data given as a separate csv file in R to solve this
question.
4. Find a 95% confidence interval for the mean change in percent return to investors.
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Transcribed Image Text:(WMM11 9.47) 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. Company Соса-Сola 1986–96 1996 29.8% 27.9% 22.1% 44.5% 22.2% 43.8% 21.7% 43.3% 25.4% 24.0% 88.3% 18.1% 131.2% Mirage Resorts Merck Microsoft Johnson & Johnson Intel Pfizer 34.0% 21.9% 28.3% 11.8% 32.1% 6.2% 20.3% Procter & Gamble Berkshire Hathaway S&P 500 Note: You have to properly import the data given as a separate csv file in R to solve this question. 4. Find a 95% confidence interval for the mean change in percent return to investors.
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