In initial tests of a new polio vaccine, 30 of 10,000 vaccinated children later developed polio. Of
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Question:
- In initial tests of a new polio vaccine, 30 of 10,000 vaccinated children later developed polio. Of 10,000 children vaccinated with placebo, 50 later developed polio. Assume that the above samples are independent and randomly selected. Using 10%significancelevel and the P-value method, test the claim that the new vaccine is effective in lowering the polio rate. (20 Mark)
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