Research on Ulcer Treatment
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Suppose that research doctors wish to know if penicillin is an effective treatment for ulcers. They plan to search hospital records for patients with ulcers and then randomly select two groups: a group which happened to have been given penicillin and another group which was never given penicillin. State whether comparing these two groups would be a prospective experiment, and justify your answer.
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Solution Summary
This solution conducts a hypothesis test on the data provided for the ulcer treatment by stating the decision rule, calculating the test statistic, comparing it with the p-value and finally making a decision to accept or reject the null hypothesis.
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