[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fe38qWWQaxpHk8KNMpg2Ni81pYh3UzMAwMFrKaM2wzfw":3},{"id":4,"source":5,"question":6,"options":7,"answer":13,"related":14,"type":26,"origin":116,"createTime":28},168541375,"v1","完全随机设计资料进行多个样本均数的比较时,如果处理因素无作用,则方差分析的F值在理论上应等于",[8,9,10,11,12],"0","-1","1","∞","2",[],[15,29,40,51,55,66,77,85,96,105],{"id":16,"source":5,"question":17,"options":18,"answer":24,"related":25,"type":26,"origin":27,"createTime":28},168541372,"说明某现象发生强度的指标是",[19,20,21,22,23],"平均数","率","构成比","相对比","标准差",[],[],0,null,"2024-12-02T15:47:11+08:00",{"id":30,"source":5,"question":31,"options":32,"answer":38,"related":39,"type":26,"origin":27,"createTime":28},168541373,"测得15名健康人和15名Ⅲ度肺气肿病人痰中抗胰蛋白酶含量(g\u002FL),在进行成组t检验时,其自由度为",[33,34,35,36,37],"30","28","15","14","29",[],[],{"id":41,"source":5,"question":42,"options":43,"answer":49,"related":50,"type":26,"origin":27,"createTime":28},168541374,"两样本均数比较作t检验时,分别取以下检验水准,犯Ⅱ类错误概率最小的是",[44,45,46,47,48],"α=0.01","α=0.05","α=0.10","α=0.20","α=0.30",[],[],{"id":4,"source":5,"question":6,"options":52,"answer":53,"related":54,"type":26,"origin":27,"createTime":28},[8,9,10,11,12],[],[],{"id":56,"source":5,"question":57,"options":58,"answer":64,"related":65,"type":26,"origin":27,"createTime":28},168541376,"标化两地的结核病死亡率从而进行比较,其目的是",[59,60,61,62,63],"为了能更好地反映人群实际死亡水平","消除两地总人数不同的影响","消除各年龄组死亡率不同的影响","消除两地人口年龄构成不同的影响","消除区域分布不同造成的影响",[],[],{"id":67,"source":5,"question":68,"options":69,"answer":75,"related":76,"type":26,"origin":27,"createTime":28},168541377,"某人群血糖的正常值范围是",[70,71,72,73,74],"该指标在该人群的波动范围","该指标在所有人中的波动范围","该指标在所有正常人中的波动范围","该指标在大多数正常人中的波动范围","该指标在不同时间的波动范围",[],[],{"id":78,"source":5,"question":79,"options":80,"answer":83,"related":84,"type":26,"origin":27,"createTime":28},168541378,"以下可以用来说明患有某种疾病病人不同年龄组所占比例的指标是",[81,20,21,22,82],"平均率","比值比",[],[],{"id":86,"source":5,"question":87,"options":88,"answer":94,"related":95,"type":26,"origin":27,"createTime":28},168541379,"某县防疫站1975年5月观察了482人的锡克试验反应,其中:幼儿园儿童101人,阳性21人;小学生145人,阳性22人;中学生236人,阳性15人.相比起来,1974年为:幼儿园儿童144人,阳性37人;小学生1417人,阳性322人;中学生359人,阳性41人.请选择合适的统计图描述上述结果",[89,90,91,92,93],"复式条图","直方图","线图","散点图","半对数线图",[],[],{"id":97,"source":5,"question":98,"options":99,"answer":103,"related":104,"type":26,"origin":27,"createTime":28},168541380,"下列选项中,哪个是标准正态分布的均数",[8,10,100,101,102],"0.5","1.96","与标准差有关",[],[],{"id":106,"source":5,"question":107,"options":108,"answer":114,"related":115,"type":26,"origin":27,"createTime":28},168541381,"关于t检验,说法是正确的",[109,110,111,112,113],"单侧检验优于双侧检验","若P>α,则接受H0犯错误的可能性很小","采用配对t检验还是两样本t检验是由试验设计方案所决定的","检验水准α只能取0.05","用两样本z检验时,要求两总体方差齐性",[],[],{"courseName":117,"courseImg":118,"workName":119,"workId":120,"count":121,"courseId":122},"医学统计学","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5bfc1cfcbe6a47611d9570cdfced1719.png","练习4","work_39407379",259,"072154c0a35446157a262a4e224395ad"]