Question

Some have argued that throwing darts at the stock pages to decide which companies to invest in could be successful stock-picking strategy Suppose a researcher decides to test this theory and randomly chooses 150 companies to invest in Ater 1 year, 81 of the companies were considered winners, that is, they outperformed other companies in tle same invesbment class. To assess whether the dart-picking strategy resulted in a majonty of winners, the researcher lested H p-05 versus H,: p>05 and obtained a P-value of 0.1636. Explain what this Pvalue means and write a conclusion for the researcher. (ssume a is 0.1 or less Choose the corect explanation below. OA About 81 in 150 samples will give a sample proporion as high or higher than the one obtained if the population proportion realy is 0.5 O B. About 81 in 150 samples will give a sample proportion as high or higher than the one oblained i the population proportion realy is greater than 0.5 OC. About 16 in 100 samples will give a sample proportion as high or higher than the one eblained if he population proportion realy is 0.5 OD. About 16 in 100 samples will give a sample proportion as high or higher than the one cbtained it the population proportion really is greater than 0.5. Choose the comrect concluaion below OA Because this probability is smal, reject the null hypothesis. There is suficient evidence to conclude that the dart-gicking strategy resuted in a majority of winners OB. Because this probability is not smal, reject the null hypothesis. There is sufficient evidence to conclude that the dart-picking strategy resuted in a majority of winners OC. Because this probability is not smal, do not reject the null hypothesis. There is not sufficlent evidence to conclude thet the dart-picking strategy resuted in a majorty of winners OD. Because this probability is amall, do not reject the nul hypothesis. There is not suficient evidence to conclude that the dart-picking strategy resulted in a majorty of winners Click to select your answer.

Answer 1

1) for p value explanation: option C is correct: as it is the probability of getting equal to or more extreme test statistic from the sample if null hypothesis is correct

2)option C is correct