Question

In a research study conducted to assess how companies view their long term economic prospects, representatives from 50 large companies, 100 midsized companies, and 200 small companies were contacted and interviewed. In the sample of large companies, 38 (76%) said that the company’s long term economic prospects were good, while 68 (68%) of the midsized companies in the sample reported that long term prospects for the company were good, and 142 (71%) of the small companies in the sample reported that long term prospects for the company were good. Use the chi square test of proportion differences to test the hypothesis that the proportion of companies who would report good long term economic prospects is the same for all three size classifications. Use a significance level of 5%.


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  • CreatedJuly 16, 2015
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