Mathematics, 12.08.2020 05:01, martl4175

In a survey of 200 publicly-traded companies, the average price-earnings ratio was 18.5 with a standard deviation of 8.2. When testing the hypothesis (at the 5% level of significance) that the average price-earnings ratio has increased from the past value of 16.8, the null and alternative hypotheses would be:

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In a survey of 200 publicly-traded companies, the average price-earnings ratio was 18.5 with a stand...