[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fTMUorxxZmYjifNnQpByxGOzmLgW9rLxYgJZ1p3Jv4G4":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":111,"createTime":26},110382858,"v1","设\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fae1c98b4def8a5e3913a14b29b9d87a7.png\">为来自总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fbbc2581b1b4ee1fc2aca8a685c3048f3.png\">的样本,那么下面总体均值的估计量中,( )是有偏估计量",[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fd78ef8c90b98c00cd40de013322b80ff.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F49f3cce5293471ca4c8f6803625b6676.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F00d01a566cbe73c213918a20c39a3086.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F63653f7509c25734fadb0b7d2328f207.png\">",[],[14,27,37,47,57,67,71,79,90,100],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},110382850,"设总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F33593d2ec3a14f1a071b3c309aa11260.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fa128b229db9604ef7b76c27ad9fe8bc1.png\">为来自总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fbbc2581b1b4ee1fc2aca8a685c3048f3.png\">的样本,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F541e81328da360a91c5dfe4e8bea4fcd.png\">为一组样本观测值,则参数\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F9c0a76305174369fd8c948052a271634.png\">的最大似然估计量为( )",[18,19,20,21],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F9aee8b26f346c3e8b24cf15d38d784ac.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Ff7366c6d71d439108229ff8a0868d4ab.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F1ec1bd790dd32433d265a46471ed37c1.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F73e7a6701d6580e7098640933fdb96b1.png\">",[],[],0,null,"2024-01-06T19:16:33+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":35,"related":36,"type":24,"origin":25,"createTime":26},110382852,"设\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F3a927a92e62be7b599f407aa418454a2.png\">为正态总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fd99cb7ea26668817c280ae55675017e6.png\">的一组样本观测值,估计标准差为\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F64a2cdc2c72b48dbfcf7bca71d393110.png\">,要使对\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fcc1373ca1e2fd4642da85f81af0ae976.png\">做出的估计与\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fcc1373ca1e2fd4642da85f81af0ae976.png\">的真值的差距最多不超过\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F4f092ed8f56e881590d997aa242db59a.png\">的置信度为\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F8a34e3796f55af46cb327a2ec13349c5.png\">,则样本容量\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F570f18e4498ea5e008d7bbd8.png\">至少取( ).注:\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F45c6cd863a45df2d45988a28e4b0e2c9.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fa3fe195c06d9ff6066bdd9efa2fb1e66.png\">",[31,32,33,34],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F655388cd97fa74423eaed4666cf6eb91.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fc8ebaae7786b3cfad1956919ca278832.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fcc262463495c822cb8a65fd19e4135d1.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F5b3b5beb43aed638db1d714decac83b3.png\">",[],[],{"id":38,"source":5,"question":39,"options":40,"answer":45,"related":46,"type":24,"origin":25,"createTime":26},110382853,"设\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F50103ceea2bb1bfa47774c1025ef6cb6.png\">为正态总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fd99cb7ea26668817c280ae55675017e6.png\">的一组样本观测值,计算得\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Feff6e5ac36336db4afd2b70fc2727143.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fde667885345fd44d2114e6e584c2d480.png\">,则\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe3513e808fc435826b1d8c9a1ac0d677.png\">的一个置信度为\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F73cd213d349021e8e7245b826729daef.png\">的置信区间为( ).注:\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F3441f3b0dac21d227872a5501ad2d21d.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fc4b5e0cf8be82eeacb4a6ad7539d3c94.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe8f43478c29cb69fb0cc034a0fd2b794.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe000bbda79dc42e783e7e887b84f97dc.png\">",[41,42,43,44],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fc45a66fc9151816c261b97a25c737b7e.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F84736f8690669c425dbd6260228a2d05.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F02e94182fe9d7bbd0a2dd26ad2c93b7f.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe220da55c4206985600ae1c228498e3e.png\">",[],[],{"id":48,"source":5,"question":49,"options":50,"answer":55,"related":56,"type":24,"origin":25,"createTime":26},110382855,"设\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fc13b13545c6ccf897b8b6d58d4a75e93.png\">为来自总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fbbc2581b1b4ee1fc2aca8a685c3048f3.png\">的样本,且\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F7b4c2fc72d4412403d2b47776725d6cf.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F7614a0441010d014850af89b6f6875c1.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fde3abd23777718195b4383a773bdb634.png\">均为总体均值的无偏估计量,则\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F5cce5b6502b41de45b6a17b87910e336.png\">的大小关系为( )",[51,52,53,54],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F0060831246a341eb1a1e0022032e9db2.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fa5e89cc790c10bf2f53c670483f736f6.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fce772b9bc0fd2f99c96756b99e9d987c.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F93b70c8638430c692b441894926fecf6.png\">",[],[],{"id":58,"source":5,"question":59,"options":60,"answer":65,"related":66,"type":24,"origin":25,"createTime":26},110382857,"已知\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fb0e44883c9be2cdf7357632fe0a84210.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F92d4387e2782be10772a2987b18c2b3e.png\">,设\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F4d29e1a041a6e4567ad810fda5eee67b.png\">为来自正态总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fc3439330d7af4f847917f962d4b1d813.png\">的样本,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fcb5229b9dfa0de458e634f14ee5e844e.png\">,那么, \u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F9ac20ba1a54c062278a4c0602f36ab4c.png\">( )",[61,62,63,64],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F4ecf7c3a9e438c8fd65bd8d42145f7fa.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fae6998d47dd69dd46249dc076ea321a9.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F6fb23c0a0dd0e2cc56025e977392d425.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F93a1db3bcb1e95603c625cefc6acbc22.png\">",[],[],{"id":4,"source":5,"question":6,"options":68,"answer":69,"related":70,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"id":72,"source":5,"question":73,"options":74,"answer":77,"related":78,"type":24,"origin":25,"createTime":26},110382859,"设总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F33593d2ec3a14f1a071b3c309aa11260.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fa128b229db9604ef7b76c27ad9fe8bc1.png\">为来自总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fbbc2581b1b4ee1fc2aca8a685c3048f3.png\">的样本,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F2b244f3297679904633a3e32fbfe50a7.png\">为一组样本观测值,则参数\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F9c0a76305174369fd8c948052a271634.png\">的矩估计值为( )",[18,20,75,76],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fa613e7443070fde86a49264b9cb47ce3.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F0a0048f61b18d1471e43e47beaa7b3ef.png\">",[],[],{"id":80,"source":5,"question":81,"options":82,"answer":87,"related":88,"type":24,"origin":25,"createTime":89},110382861,"设总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Ff6f5045d1e140876c8cda157714e0581.png\">,其中\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F6a0e5ce76cab4d0dc433abb61f9c21b2.png\">已知,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F3fe59ff7fe8951cf75c4406c6801063a.png\">是来自总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fbbc2581b1b4ee1fc2aca8a685c3048f3.png\">的样本,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fb4aede70fe06675668d917754ac392da.png\">和\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F81d2a532c6091dbbd77eb97bc1ee6c72.png\">分别是样本均值和样本方差,则下列结论中成立的是( )",[83,84,85,86],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F016260fbf6093986be06a25b01f72960.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fd177b8c9f82e7ff81fe4b0b38d1b194d.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fb0fc98881fb101479b6e6478dc2c580c.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F9a09347f34a85c98d78b73f4ee625245.png\">",[],[],"2023-12-03T12:19:48+08:00",{"id":91,"source":5,"question":92,"options":93,"answer":98,"related":99,"type":24,"origin":25,"createTime":26},110382864,"某糖果厂用自动包装机包装糖果,规定每包质量为\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F4ec859ccc6aa7135086e3338733dd356.png\">. 假设每包糖果的实际质量服从正态分布\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fd99cb7ea26668817c280ae55675017e6.png\">. 要检验每包糖果的平均质量(即总体期望\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F748a4d640b7eec17a7b791c82a2b0824.png\">)与规定质量是否相符,应提出的原假设\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fa62c595412f4cd94d7402f8be50c9a75.png\">为( )",[94,95,96,97],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe8564d0b04286c720d5abdb9d17e0f7a.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fc20a5baac7688bd8326cb7d29a10b46a.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fce485037dbb5de43979aa641ffb6b7f0.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F80e9eb97bb3cc28a7e54919bf4e3bcd0.png\">",[],[],{"id":101,"source":5,"question":102,"options":103,"answer":108,"related":109,"type":24,"origin":25,"createTime":110},110382865,"设总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe48fbf96f341e582506e06112f824aad.png\">,\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F3fe59ff7fe8951cf75c4406c6801063a.png\">为来自总体\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fbbc2581b1b4ee1fc2aca8a685c3048f3.png\">的样本,则该样本的密度函数为( )",[104,105,106,107],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F907dca899d841f2561d5c14b0181a572.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F2e5e6d2a3d34e8ceaae9538db39392fe.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F10d87d2c6bf6f806c0e8fb869b804ade.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F3891a1151b0d5e31e3088d1eb68cce24.png\">",[],[],"2024-01-06T19:16:32+08:00",{"courseName":112,"courseImg":113,"workName":114,"workId":115,"count":116,"courseId":117},"概率论与数理统计A","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F983c3a0bb82bf0bd3a18ccba99a18bea.png","作业(第四、五章+6.1)20231201","work_31293615",20,"a848e8d089d72692de2ca1a1ecf9c067"]