marketing strict internal cost control, business and innovation performance. --Increasing electricity access, price increase, electricity supply is guaranteed. In 2012, the company with coal inventory, get rewards of Jiangsu provincial government power to 266 million kWh. Through the \o electricity 1.695 billion kWh, seeking removal compensation when the power 50 million-kilowatt, 116% market share in Jiangsu Province ranked first in the same capacity, the same type units. Company closely tracked coal linkage policies on July 1 and August 20 respectively increase prices 2.08 minutes and 2.5 points, profitability increased significantly. 公... Job grading, remuneration of labour agreements into long-term contract workers compensation system, stimulating the enthusiasm of the staff. --Further strengthening of human resources management. Full implementation of the performance appraisal regulations, incentive effect. Complete the reserve cadre evaluation and selection, produced 10 primary reserve cadres and 11 secondary reserve cadres. Implementation of operation staff induction gang system, 14 staff posts be promoted. Strengthening the cultivation of professional technical leaders, selected coverage 9 13 factory-level professional and technical leaders. To enhance staff skills training, 8 staff technicians. Labor contract law compliance, contracts of up to 100%. --Star team-building to advance further. Establish a \ding system implementation, and promoting the whole\-building goals, strengthen group management. eam building into a performance review, promoting the construction of the star team depth. This year, respectively, 1 track, 4 team four star rated five-star by Datang and the team. Four, insists on \construction of\development, really good job of party construction and the independent Commission against corruption, strengthening the humanistic care and psychological counseling, the enterprise culture construction to a new level. --Building of enterprise culture is fruitful. Companies adhere to the Shenhua lead of corporate culture, culture ofresponsibility at the core, to safety culture, a culture of learning, ethical culture, cost culture culture system-assisted, through various cultural integration, has boosted business centre, this year has won the \nese cultural management advanced unit\nced Unit in the building of enterprise culture of reform and opening up 30\nd other honorary titles. The liability of the company culture: solving management problems of corporate culture project was awarded the CEC national electric power enterprise culture achievement award of excellence. The accident early warning and prevention system was rated as China's power of innovation management, innovation management of electric power enterprise in Jiangsu Province. --Party and the independent Commission against corruption continues to strengthen. Was carried out to \一、最佳选择题
1．卫生统计工作的步骤为
A.统计研究调查、搜集资料、整理资料、分析资料 B.统计资料收集、整理资料、统计描述、统计推断 C.统计研究设计、搜集资料、整理资料、分析资料 D.统计研究调查、统计描述、统计推断、统计图表 E.统计研究设计、统计描述、统计推断、统计图表 2．统计分析的主要内容有
A.统计描述和统计学检验 B.区间估计与假设检验 C.统计图表和统计报告 D.统计描述和统计推断 E.统计描述和统计图表 3．统计资料的类型包括
A.频数分布资料和等级分类资料 B.多项分类资料和二项分类资料 C.正态分布资料和频数分布资料 D.数值变量资料和等级资料 E.数值变量资料和分类变量资料 4．抽样误差是指
A.不同样本指标之间的差别
B.样本指标与总体指标之间由于抽样产生的差别 C.样本中每个体之间的差别 D.由于抽样产生的观测值之间的差别 E.测量误差与过失误差的总称 5.统计学中所说的总体是指
A.任意想象的研究对象的全体 B.根据研究目的确定的研究对象的全体 C.根据地区划分的研究对象的全体 D.根据时间划分的研究对象的全体 E.根据人群划分的研究对象的全体 6．描述一组偏态分布资料的变异度，宜用
A.全距 B.标准差 C.变异系数 D.四分位数间距 E.方差 7．用均数与标准差可全面描述其资料分布特点的是 A.正偏态分布 B.负偏态分布 C.正态分布和近似正态分布 D.对称分布 E.任何分布
8．比较身高和体重两组数据变异度大小宜采用 A.变异系数 B.方差 C.极差 D.标准差 E.四分位数间距
9．频数分布的两个重要特征是
A.统计量与参数 B.样本均数与总体均数 C.集中趋势与离散趋势 D.样本标准差与总体标准差 E.样本与总体 10．正态分布的特点有
A.算术均数=几何均数 B.算术均数=中位数
C.几何均数=中位数 D.算术均数=几何均数=中位数 E.以上都没有
11．正态分布曲线下右侧5％对应的分位点为
ecurity, profit, maintain stability and promote harmonious development\nt of the %uarantees\practice activities and \party spirit, to conduct, for example\n, party and further improvement of the level of work. Staff participating in the honest and clean culture construction seminars, staff's sense of probity and enhanced. Founded by honest inspectors team composed of 12 employees to broaden the channels of supervision. Adhere to establish \dership activities, staff satisfaction rate of 98% to the team. --Group work dynamic. Promoting the openness of factory Affairs, proposal for a love letter box, to the vital interests of the staff Trade Union delegation leader meeting of the 26 system to discuss and safeguard their democratic rights. Improve the organizational structure of the mission, the work of strengthening. Organize maintenance labor emulation nd \alth Cup\on, enhance the skills of staff. Organized a variety of cultural activities, physical and mental health care staff, to create a harmonious atmosphere. During the Wenchuan earthquake, donated all the company employees, to love, to support the disaster areas. This year, the company has won the \n be controlled, money should not be wasted \philosophy, management analysis, to improve management quality, improve cost control capacity and market competitiveness. Innovation of science and technology--science and technology innovation is to play the role of science and technology as the primary productive force, active use of new technologies, new materials, new processes, new equipment, increase investment in science and technology, strengthening scientific and technological training, speeding up transforming scientific and technological achievements, forming a number of proprietary technology, enhancing core competitiveness. Resource-saving-the-resources saving enterprise was to reduce coal consumption, water consumption, electricity at the core, enhance the operation of lean management to realize low consumption, high efficiency, reduce production costs. Second is to strengthen the business, financial, material, information and the optimization of organization and management, saving the internal transaction costs. Harmonious development of harmonious development--is to construct a \nvironment for development. \XING\curity firm and internal management of the internal management measures are effective, harmonious\\prise coordinating development of homeopathy, well, get along with the neighbors better.\prises building intrinsic safety power company goals are: unplanned outage 0 times. Class of disorders 0, 0 is equivalent forced outage rate. No personal injury accident, material and equipment accidents do not occur, no fire, no environmental pollution accident. Enterprise integrated to achieve zero cases of violation, zero accidents, zero. Quality goal is: when generating capacity ≥ 7.5 marketing strict internal cost control, business and innovation performance. --Increasing electricity access, price increase, electricity supply is guaranteed. In 2012, the company with coal inventory, get rewards of Jiangsu provincial government power to 266 million kWh. Through the \o electricity 1.695 billion kWh, seeking removal compensation when the power 50 million-kilowatt, 116% market share in Jiangsu Province ranked first in the same capacity, the same type units. Company closely tracked coal linkage policies on July 1 and August 20 respectively increase prices 2.08 minutes and 2.5 points, profitability increased significantly. 公... Job grading, remuneration of labour agreements into long-term contract workers compensation system, stimulating the enthusiasm of the staff. --Further strengthening of human resources management. Full implementation of the performance appraisal regulations, incentive effect. Complete the reserve cadre evaluation and selection, produced 10 primary reserve cadres and 11 secondary reserve cadres. Implementation of operation staff induction gang system, 14 staff posts be promoted. Strengthening the cultivation of professional technical leaders, selected coverage 9 13 factory-level professional and technical leaders. To enhance staff skills training, 8 staff technicians. Labor contract law compliance, contracts of up to 100%. --Star team-building to advance further. Establish a \ding system implementation, and promoting the whole\ng goals, strengthen group management. eam building into a performance review, promoting the construction of the star team depth. This year, respectively, 1 track, 4 team four star rated five-star by Datang and the team. Four, insists on \construction of\development, really good job of party construction and the independent Commission against corruption, strengthening the humanistic care and psychological counseling, the enterprise culture construction to a new level. --Building of enterprise culture is fruitful. Companies adhere to the Shenhua lead of corporate culture, culture ofresponsibility at the core, to safety culture, a culture of learning, ethical culture, cost culture culture system-assisted, through various cultural integration, has boosted business centre, this year has won the \nese cultural management advanced unit\nced Unit in the building of enterprise culture of reform and opening up 30\nd other honorary titles. The liability of the company culture: solving management problems of corporate culture project was awarded the CEC national electric power enterprise culture achievement award of excellence. The accident early warning and prevention system was rated as China's power of innovation management, innovation management of electric power enterprise in Jiangsu Province. --Party and the independent Commission against corruption continues to strengthen. Was carried out to \ A.μ+1.96σ B.μ-1.96σ C.μ+2.58σ D.μ+1.64σ E.μ-2.58σ
12．下列哪个变量为标准正态变量 A.
x??x??x??x??x?? B. C. D. E. s?ssx?x13．某种人群（如成年男子）的某个生理指标（如收缩压）或生化指标（如血糖水平）的正常值范
围一般指
A.该指标在所有人中的波动范围 B.该指标在所有正常人中的波动范围 C.该指标在绝大部分正常人中的波动范围 D.该指标在少部分正常人中的波动范围 E.该指标在一个人不同时间的波动范围 14．下列哪一变量服从t分布 A.
x??x??x??x??? B.
? C.
? D.
x?xxs E. xsx15.统计推断的主要内容为
A.统计描述与统计图表 B.参数估计和假设检验 C.区间估计和点估计 D.统计预测与统计控制 E.参数估计与统计预测 16．可信区间估计的可信度是指
A.? B.1-? C.? D.1-? E.估计误差的自由度 17．下面哪一指标较小时可说明用样本均数估计总体均数的可靠性大 A.变异系数 B.标准差 C.标准误 D.极差 E.四分位数间距
18．两样本比较作t检验，差别有显著性时，P值越小说明
A.两样本均数差别越大 B.两总体均数差别越大
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 E. I型错误越大
19．两样本比较时，分别取以下检验水准，哪一个的第二类错误最小 A.?=0.05 B.?=0.01 C.?=0.10 D.?=0.20 E.?=0.02
20.当样本含量n固定时，选择下列哪个检验水准得到的检验效能最高 A.?=0.01 B.?=0.10 C.?=0.05 D.?=0.20 E.?=0.02 21.在假设检验中，P值和?的关系为
A. P值越大，?值就越大 B. P值越大，?值就越小
C. P值和?值均可由研究者事先设定 D. P值和?值都不可以由研究者事先设定 E. P值的大小与?值的大小无关
ecurity, profit, maintain stability and promote harmonious development\content of the %uarantees\ce activities and \party spirit, to conduct, for example\party and further improvement of the level of work. Staff participating in the honest and clean culture construction seminars, staff's sense of probity and enhanced. Founded by honest inspectors team composed of 12 employees to broaden the channels of supervision. Adhere to establish \ship activities, staff satisfaction rate of 98% to the team. --Group work dynamic. Promoting the openness of factory Affairs, proposal for a love letter box, to the vital interests of the staff Trade Union delegation leader meeting of the 26 system to discuss and safeguard their democratic rights. Improve the organizational structure of the mission, the work of strengtening. Organize maintenance la
atmosphere. During the Wenchuan earthquake, donated all the company employees, to love, to support the disaster areas. This year, the company has won the \ng costs can be controlled, money should not be wasted \nt philosophy, management analysis, to improve management quality, improve cost control capacity and market competitiveness. Innovation of science and technology--science and technology innovation is to play the role of science and technology as the primary productive force, active use of new technologies, new materials, new processes, new equipment, increase investment in science and technology, strengthening scientific and technological training, speeding up transforming scientific and technological achievements, forming a number of proprietary technology, enhancing core competitiveness. Resource-saving-the-resources saving enterprise was to reduce coal consumptiSecond is to strengthen the business, financial, material, information and the optimization of organization and management, saving the internal transaction costs. Harmonious development of harmonious development--is to construct a \nvironment for development. \XING\curity firm and internal management of the internal management measures are effective, harmonious\\prise coordinating development of homeopathy, well, get along with the neighbors better.\prises building intrinsic safety power company goals are: unplanned outage 0 times. Class of disorders 0, 0 is equivalent forced outage rate. No personal injury accident, material and equipment accidents do not occur, no fire, no environmental pollution accident. Enterprise integrated to achieve zero cases of violation, zero accidents, zero. Quality goal is: Cup\on, enhance the skills of staff. Organized a variety of cultural activities, physical and mental health care staff, to create a harmonious on, electricity at the core, enhance the operation of lean management to realize low consumption, high efficiency, reduce production costs. capacity ≥ 7.52
bor emulation and \on, water consumptiwhen generating marketing strict internal cost control, business and innovation performance. --Increasing electricity access, price increase, electricity supply is guaranteed. In 2012, the company with coal inventory, get rewards of Jiangsu provincial government power to 266 million kWh. Through the \bilateral trade, access to electricity 1.695 billion kWh, seeking removal compensation when the power 50 million-kilowatt, 116% market share in Jiangsu Province ranked first in the same capacity, the same type units. Company closely tracked coal linkage policies on July 1 and August 20 respectively increase prices 2.08 minutes and 2.5 points, profitability increased significantly. 公... Job grading, remuneration of labour agreements into long-term contract workers compensation system, stimulating the enthusiasm of the staff. --Further strengthening of human resources management. Full implementation of the performance appraisal regulations, incentive effect. Complete the reserve cadre evaluation and selection, produced 10 primary reserve cadres and 11 secondary reserve cadres. Implementation of operation staff induction gang system, 14 staff posts be promoted. Strengthening the cultivation of professional technical leaders, selected coverage 9 13 factory-level professional and technical leaders. To enhance staff skills training, 8 staff technicians. Labor contract law compliance, contracts of up to 100%. --Star team-building to advance further. Establish a \ng system implementation, and promoting the whole\-building goals, strengthen group management. Team building into a performance review, promoting the construction of the star team depth. This year, respectively, 1 track, 4 team four star rated five-star by Datang and the team. Four, insists on %uction of\development, really good job of party construction and the independent Commission against corruption, strengthening the humanistic care and psychological counseling, the enterprise culture construction to a new level. --Building of enterprise culture is fruitful. Companies adhere to the Shenhua lead of corporate culture, culture of responsibility at the core, to safety culture, a culture of learning, ethical culture, cost culture culture system-assisted, through various cultural integration, has boosted business centre, this year has won the \nese cultural management advanced unit\nced Unit in the building of enterprise culture of reform and opening up 30\nd other honorary titles. The liability of the company culture: solving management problems of corporate culture project was awarded the CEC national electric power enterprise culture achievement award of excellence. The accident early warning and prevention system was rated as China's power of innovation management, innovation management of electric power enterprise in Jiangsu Province. --Party and the independent Commission against corruption continues to strengthen. Was carried out to \22.假设检验中的第二类错误是指
A.拒绝了实际上成立的H0 B.不拒绝实际上成立的H0 C.拒绝了实际上成立的H1 D.不拒绝实际上不成立的H0 E.拒绝H0时所犯的错误
23.方差分析中，组内变异反映的是
A. 测量误差 B. 个体差异 C. 随机误差，包括个体差异及测量误差
D. 抽样误差 E. 系统误差 24.方差分析中，组间变异主要反映
A. 随机误差 B. 处理因素的作用 C. 抽样误差 D. 测量误差 E. 个体差异
25.多组均数的两两比较中，若不用q检验而用t检验，则
A. 结果更合理 B. 结果会一样 C. 会把一些无差别的总体判断有差别的概率加大 D. 会把一些有差别的总体判断无差别的概率加大 E. 以上都不对
26.说明某现象发生强度的指标为
A.构成比 B.相对比 C.定基比 D.环比 E. 率
27.对计数资料进行统计描述的主要指标是
A.平均数 B.相对数 C.标准差 D.变异系数 E.中位数 28.构成比用来反映
A.某现象发生的强度 B.表示两个同类指标的比
C.反映某事物内部各部分占全部的比重 D.表示某一现象在时间顺序的排列 E.上述A与C都对
29. 样本含量分别为n1和n2的两样本率分别为p1和p2，则其合并平均率pc为 A. p1+p2 B. （p1+p2）/2 C.
pn1p1?n2p21?p2 D. n
1?n2 E.
(n1?1)p1?(n2?1)p2n?n
12?230.下列哪一指标为相对比
ecurity, profit, maintain stability and promote harmonious development\content of the %uarantees\ce activities and \party spirit, to conduct, for example\party and further improvement of the level of work. Staff participating in the honest and clean culture construction seminars, staff's sense of probity and enhanced. Founded by honest inspectors team composed of 12 employees to broaden the channels of supervision. Adhere to establish \ship activities, staff satisfaction rate of 98% to the team. --Group work dynamic. Promoting the openness of factory Affairs, proposal for a love letter box, to the vital interests of the staff Trade Union delegation leader meeting of the 26 system to discuss and safeguard their democratic rights. Improve the organizational structure of the mission, the work of strengthening. Organize maintenance la
atmosphere. During the Wenchuan earthquake, donated all the company employees, to love, to support the disaster areas. This year, the company has won the \ng costs can be controlled, money should not be wasted \nt philosophy, management analysis, to improve management quality, improve cost control capacity and market competitiveness. Innovation of science and technology--science and technology innovation is to play the role of science and technology as the primary productive force, active use of new technologies, new materials, new processes, new equipment, increase investment in science and technology, strengthening scientific and technological training, speeding up transforming scientific and technological achievements, forming a number of proprietary technology, enhancing core competitiveness. Resource-saving-the-resources saving enterprise was to reduce coal consumptiSecond is to strengthen the business, financial, material, information and the optimization of organization and management, saving the internal transaction costs. Harmonious development of harmonious development--is to construct a \nvironment for development. \XING\curity firm and internal management of the internal management measures are effective, harmonious\\prise coordinating development of homeopathy, well, get along with the neighbors better.\prises building intrinsic safety power company goals are: unplanned outage 0 times. Class of disorders 0, 0 is equivalent forced outage rate. No personal injury accident, material and equipment accidents do not occur, no fire, no environmental pollution accident. Enterprise integrated to achieve zero cases of violation, zero accidents, zero. Quality goal is: Cup\on, enhance the skills of staff. Organized a variety of cultural activities, physical and mental health care staff, to create a harmonious on, electricity at the core, enhance the operation of lean management to realize low consumption, high efficiency, reduce production costs. city ≥ 7.53
bor emulation and \on, water consumptiwhen generating capa