卫生统计学卫生统计学 (40).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 HypothesisTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.1 The distribution of 体重变化 is the same across categories of 分组.Asymp

5、totic significances are displayed. 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

6、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 MeanBased on MedianBased on Median and with adjusted dfBased on tri

7、mmed mean.060.080.080.0461111181817,87818.809.780.780.833Hypothesis Test SummaryNull HypothesisTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.1 The distribution of 体重变化 is the same across categories of 分组.Asymptotic significances are displayed. The signific

8、ance level is .05.判断题11 .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？此题假设检验结果P=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d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

9、化高糖组.25810.058.84310.048普通组.29210.01570910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化 Based on MeanBased on MedianBased on Median and with adjusted dfBased on trimmed mean.060.080.080.0461111181817.87818.809780.780.833Hypothesis Test Summary

10、Null 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 significances are displayed. The significance level is .05.单选题12 .两样本均数比较，经佥验，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

11、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 .两数值变量资料的小样本比较的假设检验，首先应考虑（）A.用t检验B.用检验C.用秩和检验D.资料是否符合，检验的条件单选题14.在作两样本均数比较时，山、尤均小于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“佥验使用条件为（）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

12、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片, B药物镇痛时间正态性检验片表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 C

13、orrection*. 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. DeviationStd. Error

14、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就病时间 Equal variances assumed.812.3791.82418,08511,

15、9006.52425,6061.806Equal variances not 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-Wilk

16、StatisticdfSig.StatisticdfSig.镇痛时间够物.17510.200x.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 MeanBased on MedianBased on Median and with adjusted dfBased on

17、 trimmed mean.812.762.762.8101111181817,62818.379.394.394.380Group 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 Di

18、fference95% 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

19、B. Ho: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相同D. Ho：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 Si

20、gnificance 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. Deviatio

21、nStd. 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就病时间 Equal variances assumed.812.3791.

22、82418,08511,9006.52425,6061.806Equal variances 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

23、 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 the true significance.Test of Homogeneity of VarianceLevene Statisticdf1df2Sig.镇痛时间Based on Mean.812118.379B

24、ased 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1010120.90132.8012.99116.0264.1085.068Independent Samples TestLevenes Test for Equality of Variancest-test for Equality of MeansFSig.

25、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 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

26、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,不拒绝H（）,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.Statisti

27、cdfSig.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 and.762117.628.394with adjus

28、ted 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 Difference95% Confidence

29、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

30、.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.0601

31、18.809Based on Median.080118.780Based on Median and.080117,878.780with adjusted dfBased on trimmed mean.046118.833Hypothesis Test SummaryNull HypothesisTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.1 The distribution of 体重变化 is the same across categories o

32、f 分组.Asymptotic significances are displayed. The significance 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-Smirnov3Shapi

33、ro-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 MeanBased on MedianBased on Median and with adjusted dfBased on trimmed mean.060.080.080.0461111181817,87

34、818.809.780.780.833Hypothesis Test SummaryNull HypothesisTestSig. DecisionIndependent- Samples Mann- Whitney U TestRetain the .212 null hypothesis.1 The distribution of 体重变化 is the same across categories of 分组.Asymptotic significances 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

35、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)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.29210.015.70910.001a. Lilliefors Significance CorrectionTest of Homogeneity of VarianceLevene Statisticdf1df2Sig.体重变化 Based on MeanBased on MedianBased on Median and with adjusted dfBased on trimmed mean.060.080.080.0461111181817,87818.809.780.780.833