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Mathematics, 02.12.2019 17:50 glocurlsprinces

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 150 companies to invest in. after 1​ year, 78 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 upper h 0 ​: pequals 0.5 versus upper h 1 ​: pgreater than 0.5 and obtained a​ p-value of 0.3121 . explain what this​ p-value means and write a conclusion for the researcher.​ (assume alpha is 0.1 or​ less.)

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