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某研究调查了100例患A病的病人和200例患B病的病人,收集因素F的暴露史。结果在100例A病患者中有50人有F因素暴露史,在200例B病患者中有50人有F因素的暴露史。根据此资料估计疾病A与因素F暴...

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50/450×100/100=11.11%  200/450×100/100=44.44%  450/500×100/100=90%  400/550×100/100=81.82%  450/650×100/100=53.85%  
两样本均数比较的t检验  两样本率比较的t检验  四格表两样本率比较的X2检验  B、C均可  秩和检验  
300/350×100/100=85.71%  200/450×100/100=44.44%  450/500×100/100=90%  200/500×100/100=40%  300/500×100/100=60%  
两样本均数比较的t检验  两样本率比较的t检验  四格表两样本率比较的χ2检验  B、C均可  秩和检验  
300/350x100/100=85.71%  200/450x100/100=44.44%  450/500x100/100=90%  200/500x100/100=40%  300/500x100/100=60%  
300/350x100/100=85.71%  200/450x100/100=44.44%  450/500x100/100=90%  200/500x100/100=40%  300/500x100/100=60%  
200/500×100/100=40%  300/500×100/100=60%  50/500×100/100=10%  450/500×100/100=90%  100/500×100/100=20%  
50/450x100/100=11.11%  200/450x100/100=44.44%  450/500x100/100=90%  400/550x100/100=81.82%  450/650x100/100=53.85%  
200/500x100/100=40%  300/500x100/100=60%  50/500x100/100=10%  450/500x100/100=90%  100/500x100/100=20%  
两样本均数比较的t检验  两样本率比较的Z检验  四格表两样本率比较的χ2检验  B、C均可  秩和检验  
200/500×100/100=40%  300/500×100/100=60%  50/500×100/100=10%  450/500×100/100=90%  100/500×100/100=20%  
200/500x100/100=40%  300/500x100/100=60%  50/500x100/100=10%  450/500x100/100=90%  100/500x100/100=20%  
50/450×100/100=11.11%  200/450×100/100=44.44%  450/500×100/100=90%  400/550×100/100=81.82%  450/650×100/100=53.85%  
300/350×100/100=85.71%  200/450×100/100=44.44%  450/500×100/100=90%  200/500×100/100=40%  300/500×100/100=60%  
200/500×100/100=40%  300/500×100/100=60%  50/500×100/1000=10%  450/500×100/100=90%  100/500×100/100=20%