2014年电大实用卫生统计学复习题及答案(本科)小抄参考.doc

专业好文档实用卫生统计学复习题（一）一、 名词解释（每题5分，共20分）1.抽样研究2.卫生服务需要3.概率4.等级相关二、选择题（每题3分，共30分）1四格表资料的卡方检验，其校正条件是（ ）a总例数大于40b有实际数为0c有实际数小于1d有一个理论数小于5大于1，且n402某日门诊各科疾病分类资料，可作为（ ）a计算死亡率的基础 b计算发病率的基础c计算构成比的基础 d计算病死率的基础3医学人口统计学应属于卫生统计学中的哪部分内容？（ ）a健康统计b卫生统计学基本方法c卫生统计学基本原理d卫生服务统计4三个率比较的卡方检验，若p0.05，则结论是（ ）a三个样本率各不相同b总体率之间两两有差别c至少有两个总体率有差别dp1、p2、p3不全相等或完全不相等5配对计量资料，差值分布不接近正态分布，宜用何种检验？（ ）a配对t检验 b秩和检验cx2检验 du检验6比较身高与体重的变异程度，适宜的指标（ ）a极差b标准差c四分位数间距d变异系数7某日门诊各科疾病分类资料，可作为（ ）。a计算死亡率的基础b计算构成比的基础c计算发病率的基础d计算病死率的基础8假设检验中的把握度是（ ）ab1-bd1-9可用于偏态或不明分布的资料的各评价指标诸等级分值的确定方法是（ ）。a综合评分法b专家评分法c离差法d百分位法10下面哪一个不是问卷的顺序（ ）a时间顺序b内容顺序c字母顺序d类别顺序三、简答题（每题10分，共20分）1请总结直线相关系数r与直线回归系数b的意义及特点？2应用相对数时有哪些注意事项？四、计算或分析题（每题15分，共30分）1某市100名7岁男童的身高均数为120.0cm，标准差为4.80cm 。问：（1）该地7岁男童身高的95%参考值范围？（2）若一男童身高为135.0cm，怎样评价？2下表为某医院医生和护士的年龄分布调查结果统计表，请根据统计表制表原则和注意事项指出该表问题所在，并予以修改。实用卫生统计学复习题（一）参考答案及评分标准 一、名词解释（每题5分，共20分）1 抽样研究：从所研究的总体中随机抽取一部分有代表性的样本进行研究，抽样研究的目的是通过用样本资料计算的指标去推论总体。2 卫生服务需要是人们因疾病影响健康，引起人体正常活动的障碍，实际应当接受各种卫生服务的需要。（预防保健、治疗、康复）。3 概率：是指某随机事件发生的可能性大小的数值，常用符号p表示。4 等级相关是对等级数据作相关分析，它又称为秩相关，是一种非参数统计方法。二、选择题（每题3分，共30分）1d2c3a 4c5b6d7b8d9d10c三、简答题（每题10分，共20分）1直线相关系数r是说明具有直线关系的两个变量词，相关关系的密切程度与相关方向的统计指标。（1分）总体相关系数用表示，样本相关系数用r表示，的是的估计值。（1分）相关系数没有单位，取值范围是-1r0表示直线从左下方向右上方，y随x增大而增大；（1分）b40，故可用四格表专用公式计算x2值。（2分）x2=（1722-139）261/（30312635）=4.76（1分）（3） 确定p值，作出推断结论=（2-1）（2-1）=1查x2界值表，本例x2=4.763.84，故p5.99 （2分）按=0.05检验水准，拒绝h0，接受h1，（2分）认为这三种药物的阴转率不相同。（2分）winger tuivasa-sheck, who scored two tries in the kiwis 20-18 semi-final win over england, has been passed fit after a lower-leg injury, while slater has been named at full-back but is still recovering from a knee injury aggravated against usa.both sides boast 100% records heading into the encounter but australia have not conceded a try since josh charnleys effort in their first pool match against england on the opening day.aussie winger jarryd hayne is the competitions top try scorer with nine, closely followed by tuivasa-sheck with eight.but it is recently named rugby league international federation player of the year sonny bill williams who has attracted the most interest in the tournament so far.the kiwi - with a tournament high 17 offloads - has the chance of becoming the first player to win the world cup in both rugby league and rugby union after triumphing with the all blacks in 2011.id give every award back in a heartbeat just to get across the line this weekend, said williams.the (lack of) air up there watch mcayman islands-based webb, the head of fifas anti-racism taskforce, is in london for the football associations 150th anniversary celebrations and will attend citys premier league match at chelsea on sunday.i am going to be at the match tomorrow and i have asked to meet yaya toure, he told bbc sport.for me its about how he felt and i would like to speak to him first to find out what his experience was.uefa hasopened disciplinary proceedings against cskafor the racist behaviour of their fans duringcitys 2-1 win.michel platini, president of european footballs governing body, has also ordered an immediate investigation into the referees actions.cska said they were surprised and disappointed by toures complaint. in a statement the russian side added: we found no racist insults from fans of cska. baumgartner the disappointing news: mission aborted.the supersonic descent could happen as early as sunda.the weather plays an important role in this mission. starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limited cloud cover. the balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our day-to-day weather lives. it will climb higher than the tip of mount everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial airliners (5.6 miles/9.17 kilometers) and into the stratosphere. as he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence.the balloon will slowly drift to the edge of space at 120,000 feet ( then, i would assume, he will slowly step out onto something resembling an olympic diving platform.they blew it in 2008 when they got caught cold in the final and they will not make the same mistake against the kiwis in manchester.five years ago they cruised through to the final and so far history has repeated itself here - the last try they conceded was scored by englands josh charnley in the opening game of the tournament.that could be classed as a weakness, a team under-cooked - but i have been impressed by the kangaroos focus in their games since then.they have been concentrating on the sort of stuff that wins you tough, even contests - strong defence, especially on their own goal-line, completing sets and a good kick-chase. theyve been great at all the unglamorous stuff that often goes unnoticed in the stands but not by your team-mates.it is as though their entire tournament has been preparation for the final.in johnathan thurston, cooper cronk, cameron smith and either billy slater or greg inglis at full-back they have a spine that is unmatched in rugby league. they have played in so many high-pressure games - a priceless asset going into saturday.the kiwis are a lot l