Flu vaccine A drug company has developed a new vaccine for
Chapter , Problem R9.4(choose chapter or problem)
Flu vaccine A drug company has developed a new vaccine for preventing the flu. The company claims that fewer than 5% of adults who use its vaccine will get the flu. To test the claim, researchers give the vaccine to a random sample of 1000 adults. Of these, 43 get the flu. (a) Do these data provide convincing evidence to support the companys claim? Perform an appropriate test to support your answer. (b) Which kind of mistakea Type I error or a Type II errorcould you have made in (a)? Explain. (c) From the companys point of view, would a Type I error or Type II error be more serious? Why?
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