卫生统计学卫生统计学 (39).docx

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1、填空题1.观察A、B两种镇痛药物等剂量在产妇分娩中的效果，镇痛时间与相关统计分析结果如 下。请问两种药物的镇痛效果是否相同？此题的资料类型为表1两种药物在分娩中的镇痛时间（min） VA药物100125113115109145132115128127B药物124143155138115159125136115118Tests of Normality组别Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.镇痛时间阳物.17510,200x.97510.929B药物.18710.200x.91210.297a. Lillief

2、ors Significance Correction*. This is a lower bound of the true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379Based on Median.762118.394Based on Median and.762117.628.394with adjusted dfBased on trimmed mean.810118.380Group Statistics组别NMeanStd. De

3、viationStd. Error Mean镇痛时间物B药物1010120.90132.8012.99116.0264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.IdfSig. (2-tailed)Mean DifferenceStd. Error Difference95% Confidence Inteival of the DifferenceLowerUpper枕扃时间Equal variancesassumed.812.3

4、791,82418,08511,9006.52425.6061.806Equal variances not assumed-1.82417,261,08611,9006.524-25.6481.848填空题Hypothesis Test SummaryNull HypothesisTest Sig. DecisionIndependent-1 The distribution of 体重变化 is the 灌*ain the same 3soss categories of 分组.Whitney Uhypothesis.TestAsymptotic significances are dis

5、played. The significance level is .05.判断题10 .研究高糖饲料和普通饲料对家兔体重的关系，随机抽取20只家兔进行实验，结果见表1。 问两种饲料饲养效果有无差别？此题高糖组所增体重均数为2.655,普通组所增体重均数为1.890,因此可以认为高糖组所增 体重高于普通组所增体重，高糖饲料的饲养效果较好（）表1两种饲料喂养家兔体重变化。饲料2个月内各家兔所增体重(kg)高精2.54.91.50.058.11.11.32.42.91.8普通2.21.22.50.17.81.01.22.10.50.3Tests of Normality分组Kolmogorov-S

6、mirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.体重变化高糖组.25810.058.84310.048普通组.29210.015.70910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化Based on Mean.060118.809Based on Median.080118780Based on Median and.080117.878.780with adjusted dfBase

7、d on trimmed mean.046118.833Hypothesis Test SummaryNull HypothesisTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.The distribution of 体重变化 is the same across categories of 分组.Asymptotic sign币cances are displayed. The significance level is .05.判断题11 .研究高糖饲料和普

8、通饲料对家兔体重的关系，随机抽取20只家兔进行实验，结果见表1。 问两种饲料饲养效果有无差别？此题假设检验结果0=0.212,说明高糖组与普通组两种饲料的饲养效果无差别（）表1两种饲料喂养家兔体重变化一饲料2个月内各家兔所增体重(kg)高精2.54.91.50.058.11.11.32.42.91.8普通2.21.22.50.17.81.01.22.10.50.3Tests of Normality分组Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.体重变化高糖组.25810.058.84310.048普通组.29210

9、.015.70910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化Based on Mean.060118.809Based on Median.080118780Based on Median and.080117.878.780with adjusted dfBased on trimmed mean.046118.833Hypothesis Test SummaryNull HypothesisrestSig. DecisionIn

10、dependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.The distribution of 体重变化 is the same across categories of 分组.Asymptotic sign币cances are displayed. The significance level is .05.单选题12 .两样本均数比较，经，检验，差别有统计学意义时，P越小，说明（）A.两总体均数差别越大B.两总体均数差别越小C.越有理由认为两总体均数不同D.越有理由认为两样本均数不同单选题13.两数值变

11、量资料的小样本比较的假设检验，首先应考虑（）A.用，检验B.用检验C.用秩和检验D.资料是否符合t检验的条件单选题14.在作两样本均数比较时，.、n2均小于30、总体方差不齐且极度偏态的资料宜用（）A.r检验B. /检验C.u检验D.秩和检验单选题15.成组/检验使用条件为（）A.正态性、方差齐性B.只要求正态性C.只要求方差齐性D.无条件要求单选题16.成组检验使用条件为（）A.正态性、方差齐性B.只要求正态性C.只要求方差齐性D.无条件要求2 .观察A、B两种镇痛药物等剂量在产妇分娩中的效果，镇痛时间与相关统计分析结果如 下。请问两种药物的镇痛效果是否相同？此题A药物镇痛时间正态性检验人,

12、 B药物镇痛时间正态性检验人表1两种药物在分娩中的镇痛时间（min） VAg物100125113115109145132115128127B药物124143155138115159125136115118Tests of Normality组别Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.镇痛时间阳物.17510,200x.97510.929B药物.18710.200x.91210.297a. Lilliefors Significance Correction*. This is a lower bound of t

13、he true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379Based on Median.762118.394Based on Median and.762117.628.394with adjusted dfBased on trimmed mean.810118.380Group Statistics组别NMeanStd. DeviationStd. Error Mean镇痛时间物B药物1010120.90132.8012.99116.0

14、264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.IdfSig. (2-tailed)Mean DifferenceStd. Error Difference95% Confidence Inteival of the DifferenceLowerUpper就病时间 Equal variances assumed.812.3791.82418,08511,9006.52425,6061.806Equal variances not

15、 assumed-1.82417,261,08611,9006.524-25.6481.848判断题3 .观察A、B两种镇痛药物等剂量在产妇分娩中的效果，镇痛时间与相关统计分析结果如下。请问两种药物的镇痛效果是否相同？此题A、B两组总体方差齐（）表1两种药物在分娩中的镇痛时间（min） VAg物100125113115109145132115128127B药物124143155138115159125136115118Tests of Normality组别Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.镇痛时间够物.1

16、7510.200x.97510.929B药物.18710.200.91210.297a. Lilliefors Significance Correction*. This is a lower bound of the true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379Based on Median.762118.394Based on Median and.762117,628.394with adjusted dfBased on t

17、rimmed mean.810118.380Group Statistics组别NMeanStd. DeviationStd. Error Mean镇痛时间物B药物1010120.90132.8012.99116.0264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.IdfSig. (2-tailed)Mean DifferenceStd. Error Difference95% Confidence Inteival of the

18、DifferenceLowerUpper就病时间 Equal variances assumed.812.3791.82418,08511,9006.52425,6061.806Equal variances not assumed-1.82417,261,08611,9006.524-25.6481.848单选题4 .观察A、B两种镇痛药物等剂量在产妇分娩中的效果，镇痛时间与相关统计分析结果如 下。请问两种药物的镇痛效果是否相同？在进行假设检验时，以下何种检验假设是正确的（）A.H。:两药物镇痛时间的总体均数相同B. H。:两药物镇痛时间的样本均数相同C.IIo：两药物镇痛时间对应的总体分布

19、相同D.H:两药物镇痛时间差值的总体中位数为0表1两种药物在分娩中的镇痛时间（min） VA药物100125113115109145132115128127B药物124143155138115159125136115118Tests of Normality组别Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.镇痛时间够物.17510.200x.97510.929B药物.18710.200.91210.297a. Lilliefors Significance Correction*. This is a lower bo

20、und of the true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379Based on Median.762118.394Based on Median and.762117,628.394with adjusted dfBased on trimmed mean.810118.380Group Statistics组别NMeanStd. DeviationStd. Error Mean镇痛时间物B药物1010120.90132.8012

21、.99116.0264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.IdfSig. (2-tailed)Mean DifferenceStd. Error Difference95% Confidence Inteival of the DifferenceLowerUpper就病时间 Equal variances assumed.812.3791.82418,08511,9006.52425,6061.806Equal varia

22、nces not assumed-1.82417,261,08611,9006.524-25.6481.848单选题5.观察A、B两种镇痛药物等剂量在产妇分娩中的效果，镇痛时间与相关统计分析结果如 下。请问两种药物的镇痛效果是否相同？此题应使用的统计方法为（）A.配对，检验B.成组/检验C/检验D.Wilcoxon符号秩和检验表1两种药物在分娩中的镇痛时间（min） VA药物100125113115109145132115128127B药物124143155138115159125136115118Tests of Normality组别Kolmogorov-Smirnov3Shapiro-W

23、ilkStatisticdfSig.StatisticdfSig.镇痛时间阳物.17510,200x.97510.929B药物.18710.200x.91210.297a. Lilliefors Significance Correction*. This is a lower bound of the true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379Based on Median.762118.394Based on Median an

24、d.762117.628.394with adjusted dfBased on trimmed mean.810118.380Group Statistics组别NMeanStd. DeviationStd. Error Mean镇痛时间物B药物1010120.90132.8012.99116.0264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.IdfSig. (2-tailed)Mean DifferenceStd. Error

25、 Difference95% Confidence Inteival of the DifferenceLowerUpper就病时间 Equal variances assumed.812.3791.82418,08511,9006.52425,6061.806Equal variances not assumed-1.82417,261,08611,9006.524-25.6481.848单选题6 .观察A、B两种镇痛药物等剂量在产妇分娩中的效果，镇痛时间与相关统计分析结果如下。请问两种药物的镇痛效果是否相同？请根据软件计算结果，选择合适的指标，并做出统计结论（）A.P=0.3790.05,

26、不拒绝Ho，两种药物的镇痛效果相同B.B药物平均镇痛时间高于A药物平均镇痛时间，B药物镇痛效果优于A药物C.P=0.0850.05,不拒绝Ho，两种药物的镇痛效果相同D.以上说法均是错误的表1两种药物在分娩中的镇痛时间（min） VAg物100125113115109145132115128127B药物124143155138115159125136115118Tests of Normality组别Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.镇痛时间阳物.17510,200x.97510.929B药物.18710.

27、200x.91210.297a. Lilliefors Significance Correction*. This is a lower bound of the true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379Based on Median.762118.394Based on Median and.762117.628.394with adjusted dfBased on trimmed mean.810118.380Group

28、Statistics组别NMeanStd. DeviationStd. Error Mean镇痛时间物B药物1010120.90132.8012.99116.0264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.tdfSig. (2-tailed)Mean DifferenceStd. Error Difference95% Confidence Interval of the DifferenceLowerUpper褊扃时间 Equ

29、al variances assumed,812,3791.82418,08511,9006.52425.6061.806Equal variances not assumed1.82417.261.08611.9006.52425,6481.848填空题7 .研究高糖饲料和普通饲料对家兔体重的关系，随机抽取20只家兔进行实验，结果见表1。 问两种饲料饲养效果有无差别？此题的资料类型为计量资料,应采用的统计分析方法为表1两种饲料喂养家兔体重变化。饲料2个月内各家兔所增体重(kg)高精2.54.91.50.058.11.11.32.42.91.8普通2.21.22.50.17.81.01.22.

30、10.50.3Tests of Normality分组Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.体重变化高糖组.25810.058.84310.048普通组.29210.015.70910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化Based on Mean.060118.809Based on Median.080118780Based on Median

31、 and.080117.878.780with adjusted dfBased on trimmed mean.046118.833Hypothesis Test SummaryNull HypothesisTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.The distribution of 体重变化 is the same across categories of 分组.Asymptotic sign币cances are displayed. The si

32、gnificance level is .05.判断题8 .研究高糖饲料和普通饲料对家兔体重的关系，随机抽取20只家兔进行实验，结果见表1。 问两种饲料饲养效果有无差别？此题高糖组与普通组家兔所增体重总体均服从正态分布()表1两种饲料喂养家兔体重变化饲料2个月内各家兔所增体重(kg)2.54.91.50.058.11.11.32.42.91.8普通2.21.22.50.17.81.01.22.10.50.3Tests of Normality分组Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.体重变化高糖组.25810.

33、058.84310.048普通组.29210.015.70910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化Based on Mean.060118.809Based on Median.080118780Based on Median and.080117.878780with adjusted dfBased on trimmed mean.046118.833Hypothesis Test SummaryNull Hypothes

34、isTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.The distribution of 体重变化 is the same across categories of 分组.Asymptotic sign币cances are displayed. The significance level is .05.判断题9 .研究高糖饲料和普通饲料对家兔体重的关系，随机抽取20只家兔进行实验，结果见表1。 问两种饲料饲养效果有无差别？此题高糖组与普通组家兔所增体重总体方

35、差齐()表1两种饲料喂养家兔体重变化饲料2个月内各家兔所增体重(kg)2.54.91.50.058.11.11.32.42.91.8普通2.21.22.50.17.81.01.22.10.50.3Tests of Normality分组Kolmogorov-Smirnov3Shapiro-WilkStatisticdfSig.StatisticdfSig.体重变化高糖组.25810.058.84310.048普通组.29210.015.70910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化Based on Mean.060118.809Based on Median.080118780Based on Median and.080117.878.780with adjusted dfBased on trimmed mean.046118.833