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Some have argued that throwing darts at the stock pages to decide which companies to invest in could be a successful stock-picking strategy Suppose a researcher decides to test this theory and randomly chooses 300 companies to invest in. After 1 year, 156 of the companies were considered winners, that is, they outperformed other companies in the same investment class. To assess whether the dart-picking strategy resulted in a majority of winners, the researcher tested Ho: p=05 versus H₁ p>0.5 and obtained a P-value of 0 2442. Explain what this P-value means and write a conclusion for the researcher (Assume ax is 0.1 or less.) Choose the correct explanation below OA. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. OB. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. OC. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5 OD. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5.

Some have argued that throwing darts at the stock pages to decide which companies to invest in could be a successful stock-picking strategy Suppose a researcher decides to test this theory and randomly chooses 300 companies to invest in. After 1 year, 156 of the companies were considered winners, that is, they outperformed other companies in the same investment class. To assess whether the dart-picking strategy resulted in a majority of winners, the researcher tested Ho: p=05 versus H₁ p>0.5 and obtained a P-value of 0 2442. Explain what this P-value means and write a conclusion for the researcher (Assume ax is 0.1 or less.) Choose the correct explanation below OA. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. OB. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. OC. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5 OD. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Some have argued that throwing darts at the stock pages to decide which companies to invest in could be a successful stock-picking strategy. Suppose a researcher decides to test this theory and randomly chooses 300 companies to invest in. After 1 year, 156 of the companies were considered winners; that is, they outperformed other companies in the same investment class. To assess whether the dart-picking strategy resulted in a majority of winners, the researcher tested \( H_0: p = 0.5 \) versus \( H_1: p > 0.5 \) and obtained a P-value of 0.2442. Explain what this P-value means and write a conclusion for the researcher (Assume \( \alpha \) is 0.1 or less). Choose the correct explanation below: A. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. B. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. C. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5. D. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5.
Transcribed Image Text:Some have argued that throwing darts at the stock pages to decide which companies to invest in could be a successful stock-picking strategy. Suppose a researcher decides to test this theory and randomly chooses 300 companies to invest in. After 1 year, 156 of the companies were considered winners; that is, they outperformed other companies in the same investment class. To assess whether the dart-picking strategy resulted in a majority of winners, the researcher tested \( H_0: p = 0.5 \) versus \( H_1: p > 0.5 \) and obtained a P-value of 0.2442. Explain what this P-value means and write a conclusion for the researcher (Assume \( \alpha \) is 0.1 or less). Choose the correct explanation below: A. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. B. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is greater than 0.5. C. About 156 in 300 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5. D. About 24 in 100 samples will give a sample proportion as high or higher than the one obtained if the population proportion really is 0.5.
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