Question: Use the traditional method to test the given hypothesis. Assume that the samples are independent and that they have been randomly selected Seven of 8500

Use the traditional method to test the given hypothesis. Assume that the samples are independent and that they have been randomly selected Seven of 8500 people vaccinated against a certain disease later developed the disease. 18 of 10,000 people vaccinated with a placebo later developed the disease. Test the claim that the vaccine is effective in lowering the incidence of the disease. Use a significance level of 0.02

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