Noroviruses cause roughly 21 million cases of gastroenteritis ("stomach flu") annually in the United States. A study examined the effectiveness of a new norovirus vaccine. Healthy adult volunteers received, at random, either the vaccine or a placebo. They were then exposed to the norovirus. In all, 14 of the 38 vaccinated subjects suffered from gastroenteritis compared with 27 of the 39 subjects who received a placebo. We want to know if this study provides evidence that an outcome of gastroenteritis depends on the treatment received. What is the proportion of individuals suffering gastroenteritis in the entire study?
A) 0.368
B) 0.500
C) 0.532
D) 0.692
Correct Answer:
Verified
Q12: The FDA ruled in the spring
Q13: The FDA ruled in the spring
Q14: The FDA ruled in the spring
Q15: The FDA ruled in the spring
Q16: The FDA ruled in the spring
Q18: Noroviruses cause roughly 21 million cases of
Q19: Noroviruses cause roughly 21 million cases of
Q20: Noroviruses cause roughly 21 million cases of
Q21: Noroviruses cause roughly 21 million cases of
Q22: Noroviruses cause roughly 21 million cases of
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