实验课程三简单随机抽样二.docx
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实验课程三简单随机抽样二.docx
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实验课程三简单随机抽样二
实验(实训)报告
项目名称简单随机抽样
(二)
所属课程名称抽样调查
项目类型操作性实验
实验(实训)日期2012年月日
班级10统计1班
学号
姓名
指导教师
实验名称:
简单随机抽样
(二)
实验目的:
演示简单随机抽样方法(无放回)得到的
的置信区间
实验要求:
编写R程序,实现:
(1)产生200个均值15,标准差2的正态随机数;
(2)用简单随机抽样方法(无放回),抽取一个样本容量为10的样本;
(3)抽样如2所述样本100个;
(4)计算100个样本中每个样本的样本均值,样本标准差;
(5)根据每个样本,计算总体均值的置信水平为95%的置信区间;
(6)在平面直角坐标系中,画出100个置信区间;
(7)计算100个置信区间的置信概率。
实验过程:
(1)
N<-rnorm(200,15,2)
N
N<-rnorm(200,15,2)
>N
[1]16.5461416.4745916.6041913.9831714.0036517.0780315.8737610.22596
[9]15.4156014.5075516.5637612.6728515.3735614.7941019.0915813.87803
[17]18.1419614.5880516.1713116.1894017.2115114.6224813.6999312.18729
[25]16.5297515.0235213.7547616.1169314.6223619.3225313.6024713.56651
[33]16.6078712.1661112.3050216.7655114.0800516.2481615.1610714.59102
[41]15.0137613.3998314.0042218.9153115.7871314.9985515.8146715.05878
[49]12.8714513.8779011.6098314.7962113.7835816.4637914.7805614.42493
[57]14.2782713.8113013.7690813.5167514.6629314.5199416.5636313.34385
[65]12.8935717.9947314.2014113.1942512.6661912.4396215.1466313.83010
[73]17.3081617.7086917.2463414.2903014.4708913.7568918.1834915.08530
[81]12.4524115.2513316.1804816.6238114.7475217.8118814.4778018.56328
[89]14.9624816.4493617.9360216.9334911.2469811.8360016.8078616.06975
[97]18.4319715.3184614.7647418.1326415.3902915.5557117.6224914.65648
[105]15.9342114.2143016.1499616.1599113.5994514.5345314.9552113.83019
[113]10.0121515.5345018.0409416.0100618.5683212.0401114.3990512.29974
[121]18.5784216.2273814.3419511.2993318.1707211.3464714.0285616.47862
[129]13.1842415.1106713.9494914.8188411.2483315.4297012.1183412.51848
[137]11.3194911.8800213.6878417.6997018.9314117.8828714.8885512.46922
[145]12.3321214.7944017.8870015.1862018.8651410.6222614.8685410.42686
[153]18.7215718.2813315.5818818.1334916.0714018.1736016.4524214.70793
[161]14.3083512.3513614.6546713.7404512.9797012.8172214.6696815.03169
[169]13.7078916.3740814.7083016.6796715.5703713.5684116.2238619.64459
[177]18.8096413.6918415.9950715.7736817.0977317.0493615.8188014.57061
[185]10.0905316.8631113.2888613.4442812.7182614.4944012.6352915.86269
[193]13.4738315.4140611.9658814.9200713.8335215.6834820.1634012.16861
(2)
n<-sample(N,10)
>n
[1]14.5880517.2463418.9314113.5665117.8828715.9950712.9797016.67967
[9]14.0036513.81130
(3)
a<-replicate(100,sample(N,10))
>a
[,1][,2][,3][,4][,5][,6][,7]
[1,]11.9658813.2888610.4268618.1707212.3050219.6445914.00422
[2,]14.6223611.8800215.1106715.8188014.8685412.0401114.96248
[3,]15.8626914.5910214.6564818.1834913.8113018.1834912.71826
[4,]15.3184617.6997014.6696815.3184612.1872915.8188012.29974
[5,]16.1804814.6223610.6222614.8685412.4396219.3225314.49440
[6,]14.9200714.0042214.4708914.0036514.6629315.3184618.72157
[7,]16.6078714.2143014.8188414.6224813.7078914.5880510.22596
[8,]16.4786215.0316914.2143013.5167512.6661918.5632815.25133
[9,]13.9831715.7871314.8885516.4637914.7083013.7404514.62248
[10,]12.8935714.2903017.6224917.9947313.4738314.2903016.22738
[,8][,9][,10][,11][,12][,13][,14]
[1,]15.5703716.1499615.8146716.3740818.8096413.5665119.09158
[2,]15.3184615.1862014.5199416.6796713.8335213.1942513.59945
[3,]18.0409415.0137615.0853013.8301916.5297514.7941013.18424
[4,]14.7805619.0915813.5994514.2782716.2481614.6546715.05878
[5,]16.1713119.6445914.7962111.2483318.9314112.6728516.56376
[6,]14.4708913.7404518.5784213.4738312.1686115.3184617.62249
[7,]12.0401117.8870014.4778015.2513318.1419612.0401112.30502
[8,]17.8870014.5345312.1872914.5075516.5636317.9360214.65648
[9,]15.5345018.0409416.2238613.8780318.1334914.4249318.17360
[10,]14.5345315.4297013.8301911.8360013.8113014.3419517.24634
[,15][,16][,17][,18][,19][,20][,21]
[1,]13.7568911.2483310.2259612.8172215.8188013.6878412.51848
[2,]18.5784213.8113018.5683215.4156015.1862014.2903014.95521
[3,]14.9200717.0780318.1326411.8800216.5297515.1610715.03169
[4,]12.5184814.8685414.8885516.8078614.6546712.9797012.16611
[5,]14.0800513.1842414.2782716.1894013.7404515.7736811.29933
[6,]11.9658816.1804815.7736818.5784215.4156015.3902916.47459
[7,]17.0977311.2469815.5557112.1183413.5167516.5637614.62248
[8,]14.9552114.6223614.2903011.2993316.8078613.7568911.83600
[9,]14.2014112.8172217.6224913.8301012.8714514.0042216.76551
[10,]12.4524115.8737612.4524117.3081614.4249311.2993313.76908
[,22][,23][,24][,25][,26][,27][,28]
[1,]12.0401112.9797014.6564817.6224918.7215713.6918414.81884
[2,]13.1942512.3321215.1862019.0915814.7805614.8685416.67967
[3,]18.4319715.4297018.1326411.3464714.0042216.1599116.11693
[4,]12.6661914.4778011.9658816.7655113.2888615.9342114.42493
[5,]13.7568913.6878418.0409412.6728514.4249318.5784211.60983
[6,]14.3083518.1334915.7736816.4745918.1334919.3225314.78056
[7,]13.8335218.1834911.6098315.1466316.0100615.3735616.76551
[8,]15.8626915.2513312.8714512.3321213.4442816.2481614.57061
[9,]17.0493612.0401113.9494915.0587812.3321212.8714517.04936
[10,]13.8780313.7404515.8626914.7475214.7941013.6999318.72157
[,29][,30][,31][,32][,33][,34][,35]
[1,]15.8626915.8626916.1599113.7404513.8301013.3998316.06975
[2,]15.0853016.1169315.4140618.5632814.9200713.6024710.09053
[3,]15.9342112.8172217.3081614.9552116.5297514.0042212.30502
[4,]13.3438517.8118813.4738311.2483311.8800213.1942512.16861
[5,]12.0401115.9950713.9494912.5184813.7078914.8685419.64459
[6,]14.0800514.3419515.8626914.2782712.1183414.4708917.69970
[7,]14.6696816.4493616.1713116.6041916.1713116.4745914.21430
[8,]13.3998314.2903015.5345016.6078713.3438513.7835814.50755
[9,]13.5684113.7547613.8780317.9360215.4297014.7647412.43962
[10,]16.5461418.1707214.7805613.9494911.6098313.6918413.56651
[,36][,37][,38][,39][,40][,41][,42]
[1,]13.4738314.4778017.8870015.3902910.4268616.5461418.57842
[2,]14.0036517.7086910.0121510.0905316.2238611.8800215.11067
[3,]14.5706114.9624814.4249315.5818813.5665116.6796715.39029
[4,]14.3990514.8885513.7404513.5684114.7475218.5632817.88700
[5,]16.0100614.9985513.6999313.9494916.4524217.3081615.01376
[6,]12.0401114.7962114.8685414.8885515.0316916.4745917.62249
[7,]14.8188413.7835815.0587812.6661914.3419515.5345015.81467
[8,]15.5345012.8172218.5632814.6696816.1894014.8188414.59102
[9,]14.5910217.9947317.2115114.8685418.7215712.3321215.87376
[10,]13.6999315.0853014.8885514.5075512.1661118.1334915.16107
[,43][,44][,45][,46][,47][,48][,49]
[1,]16.1894019.0915817.6997018.1334913.7404512.3321217.21151
[2,]15.5557116.1894013.6878413.1842416.8078614.5199414.62236
[3,]18.8096412.8935713.7547610.0121516.1599116.1804812.33212
[4,]13.8780318.1419615.5345015.9342118.8096416.1894015.93421
[5,]12.0401115.9342116.5636315.0137618.2813312.1686115.02352
[6,]14.4249316.4524216.0714017.7086914.6629315.0316916.86311
[7,]15.7736816.0714011.3194912.8935714.9624814.7962114.70830
[8,]13.5665112.0401111.2469811.2483311.8800218.9314117.81188
[9,]14.7941016.5461415.8737615.5703712.8714516.6238112.43962
[10,]12.6661915.3184616.6796713.7568914.6223613.2888615.31846
[,50][,51][,52][,53][,54][,55][,56]
[1,]16.4786215.8737614.0285614.8885512.3513616.8078614.88855
[2,]15.0235213.6918410.4268613.3998317.8118814.3990515.53450
[3,]14.9552118.1834916.5461413.7690818.1834913.1842412.51848
[4,]14.4708911.3194912.5184813.6918417.6997013.9831714.42493
[5,]16.1169318.1419614.2143015.0137615.8626915.3902915.77368
[6,]14.3419515.3184610.6222614.9200714.5075514.0285617.07803
[7,]16.3740812.4396218.7215716.4524214.7079312.8172216.14996
[8,]16.1499614.8685413.1842414.6223616.0100617.8118815.86269
[9,]16.1804814.7944015.0853012.8714513.6918413.6878412.29974
[10,]14.6564815.3902916.8631115.9342117.9360216.2273813.83019
[,57][,58][,59][,60][,61][,62][,63]
[1,]15.3184615.1106713.7690817.3081614.4778016.6796712.63529
[2,]11.9658815.1610713.4442815.2513316.9334920.1634010.09053
[3,]12.4396213.5665117.2115113.8113015.4297014.2014115.02352
[4,]10.0905317.0977314.0036514.5910217.8118815.4140615.08530
[5,]17.7086913.8113014.5880513.9494916.5637613.7568914.20141
[6,]14.9624818.0409416.5297516.2238613.6918416.2481615.57037
[7,]13.4738317.6224915.5345011.2993314.6696817.7086914.62248
[8,]14.5880518.7215715.8188018.1419614.8885518.1834916.56376
[9,]17.2463414.5199417.9360218.9153114.9200710.6222614.21430
[10,]12.6352912.1183417.6224917.9360211.8360011.2993312.35136
[,64][,65][,66][,67][,68][,69][,70]
[1,]12.4692213.7568913.5167515.8188014.9552116.4745916.22386
[2,]14.2903016.6078715.1466314.2014114.2143014.9624813.76908
[3,]20.1634020.1634013.7547616.0100611.8800216.4637912.29974
[4,]12.5184818.1326418.1736017.8870012.4524115.9342112.33212
[5,]16.0100617.7086916.1169315.2513312.5184814.0036513.19425
[6,]11.8360015.5557113.7404514.8885517.9360217.2463412.71826
[7,]14.6224813.9831716.8631115.5818816.0714020.1634010.01215
[8,]18.1334914.4778017.8828710.4268618.5632816.0697518.91531
[9,]14.9552118.1736015.9342117.6224913.7404518.8096410.42686
[10,]
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