We have learned that the probability of making a type 1 error when the null hypothesis is true is usually set at 5%. The probability of making a type 2 error when the alternative hypothesis is true is harder to find. Do you think that probability depends on the size of the sample? Explain your answer.
Answer to relevant QuestionsWhen the Steering Committee of the Physicians’ Health Study Research Group (1988) reported the results of the effect of aspirin on heart attacks, committee members also reported the results of the same aspirin consumption, ...Suppose that you were to read the following news story: “Researchers compared a new drug to a placebo for treating high blood pressure, and it seemed to work. But the re-searchers were concerned because they found that ...Refer to the quote in Exercise 25. Explain what is meant by the second sentence of the quote. Find a news story that you think presents the results of a hypothesis test in a misleading way. Explain why you think it is misleading. Rewrite the appropriate part of the article in a way that you consider to be not ...Pick three of the possible problems with meta-analysis listed in Section 25.4, and discuss how they might apply to the reviews in the Cochrane Database.
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