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求解一个英文统计学的问题,谁能给解答一下 5
Amedicalresearcherclaimsthatshediscoveredacureforthecommoncold,whenthecureisgivento50...
A medical researcher claims that she discovered a cure for the common cold, when the cure is given to 50 sufferers, 13 of them recover within two days , A control group of 60 cold victims is given a placebo and within two days only 12 recovered. At the .05 level. do these results support the researcher's claims?
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