[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fUgP2Hdm6PBP5b3Vcgb9MtXrP_YwcTguMK5uqR3veUdw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":25,"type":26},[],"2023-12-19 17:55:20",117034387,[8,9,10,11,12],"已知A药与B药均有效","已知A药与B药均无效","已知A药不会优于B药","已知A药与B药差不多好","不知A药好还是B药好",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},51,"64709c53f48e1033413628612494ac46","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff8636953406ec34c8c3936b1de49d95b.jpg","医学统计学（22级护理学、助产学）","b591d3907a7049e8aaab1bff233887a7","假设检验","比较两药疗效时,下列可作单侧检验的情形是",[22,27,37,48,58,68,78,88,98,108],{"answer":23,"createTime":5,"id":6,"options":24,"question":20,"source":25,"type":26},[],[8,9,10,11,12],"v1",0,{"answer":28,"createTime":5,"id":29,"options":30,"question":36,"source":25,"type":26},[],117034390,[31,32,33,34,35],"建立假设、计算检验统计量、确定\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">值","确定单侧检验或双侧检验、选择\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb74cb44779dd6c28b8e52659aa8111ac.png\">检验或Z检验、估计I型错误概率和II型错误概率","建立检验假设和确定检验水准、选定检验方法,计算检验统计量、确定\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">值并做出统计推断","建立无效假设、建立备择假设、确定检验水准","建立检验假设、确定\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">值、估计置信区间","假设检验的基本步骤是",{"answer":38,"createTime":39,"id":40,"options":41,"question":47,"source":25,"type":26},[],"2023-12-19 17:55:21",117034395,[42,43,44,45,46],"若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">≤0.05,则不拒绝\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca13a73d0c800ecd7631a88fdfeb9df4.png\">,此时可能犯II型错误","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">≤0.05,则拒绝\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca13a73d0c800ecd7631a88fdfeb9df4.png\">,此时可能犯I型错误","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">≤0.05,则不拒绝\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca13a73d0c800ecd7631a88fdfeb9df4.png\">,此时可能犯I型错误","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">>0.05,则拒绝\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca13a73d0c800ecd7631a88fdfeb9df4.png\">,此时可能犯I型错误","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3883d5da62b083b1daa09d3f371b6cd1.png\">>0.05,则不拒绝\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca13a73d0c800ecd7631a88fdfeb9df4.png\">,此时可能犯I型错误","假设检验时,若检验水准α=0.05,则下列关于检验结果的说法正确的是",{"answer":49,"createTime":39,"id":50,"options":51,"question":57,"source":25,"type":26},[],117034398,[52,53,54,55,56],"0.01","0.025","0.05","0.10","0.20","假设检验时,若结果为P>α,犯错误概率最小的检验水准α为",{"answer":59,"createTime":39,"id":60,"options":61,"question":67,"source":25,"type":26},[],117034401,[62,63,64,65,66],"说明总体均数差别越大","说明总体均数差别越小","说明样本均数差别越大","说明样本均数差别越小","越有理由认为两总体均数不等","有关两样本均数的比较,检验水准α一定时,P值越小",{"answer":69,"createTime":39,"id":70,"options":71,"question":77,"source":25,"type":26},[],117034403,[72,73,74,75,76],"与该已知总体均数不同","与该已知总体均数差异很大","所对应的总体均数与已知总体均数差异很大","所对应的总体均数与已知总体均数相同","所对应的总体均数与已知总体均数不同","在样本均数与已知总体均数比较的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb74cb44779dd6c28b8e52659aa8111ac.png\">检验中,结果\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F287bf5f16c3e00b4332376807e871c35.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F59c7279ae9dd4259cff32f15ba5a9e89.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0dd56ae0aba77201d0662b3b3508fdec.png\">,按检验水准\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0310f6c343ab038b1ce7c95b0ce2c601.png\">,可认为此样本均数",{"answer":79,"createTime":39,"id":80,"options":81,"question":87,"source":25,"type":26},[],117034407,[82,83,84,85,86],"采用单侧检验更好","采用双侧检验更好","采用单、双侧检验都无所谓","根据专业知识确定采用单侧检验还是双侧检验","根据检验统计量的计算结果确定采用单侧检验还是双侧检验","下列关于单侧检验和双侧检验的说法正确的是",{"answer":89,"createTime":39,"id":90,"options":91,"question":97,"source":25,"type":26},[],117034409,[92,93,94,95,96],"当样本量确定时,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83c579704b6bfbdb8f4cdd1d3c85c341.png\">越小,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5c2d3c4e04d240cee11d6591dcfc552f.png\">越大","当样本量确定时,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83c579704b6bfbdb8f4cdd1d3c85c341.png\">越大,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5c2d3c4e04d240cee11d6591dcfc552f.png\">越小","欲减小犯I型错误的概率,可取较小\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83c579704b6bfbdb8f4cdd1d3c85c341.png\">","欲减小犯II型错误的概率,可取较大\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83c579704b6bfbdb8f4cdd1d3c85c341.png\">","若样本含量足够大,可同时避免犯这两型错误","下列关于I型错误概率\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83c579704b6bfbdb8f4cdd1d3c85c341.png\">和II型错误概率\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5c2d3c4e04d240cee11d6591dcfc552f.png\">的说法不正确的是",{"answer":99,"createTime":39,"id":100,"options":101,"question":107,"source":25,"type":26},[],117034411,[102,103,104,105,106],"备择假设用H0表示","检验水准的符号为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5c2d3c4e04d240cee11d6591dcfc552f.png\">","检验假设是针对总体特征提出","P可以事先确定","一定要计算检验统计量","关于假设检验,下列说法正确的是",{"answer":109,"createTime":39,"id":110,"options":111,"question":117,"source":25,"type":26},[],117034415,[112,113,114,115,116],"建立检验假设,确定检验水准","对总体参数的可信区间作出估计","选定检验方法,计算检验统计量","确定P值","作出统计推断结论","假设检验的一般步骤中不包括"]