第10章假设检验习题.doc

1、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 “small“ and bila

2、teral 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 incr

3、ease 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 o

4、f 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 pr

5、ofessional 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 “holding system implementation, an

6、d promoting the whole“ team-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 “six cultural construction

7、of“ harmonious 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 th

8、e 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 “Chinese cultural management advanced

9、unit“, “National Advanced Unit in the building of enterprise culture of reform and opening up 30“ and 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

10、 of excellence. The accident early warning and prevention system was rated as Chinas 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 “maintains

11、ecurity, profit, maintain stability and promote harmonious development“ as the main content of the “three guarantees“ theme practice activities and “stressing party spirit, to conduct, for example“ campaign, party and further improvement of the level of work. Staff participating in the honest and cl

12、ean culture construction seminars, staffs sense of probity and enhanced. Founded by honest inspectors team composed of 12 employees to broaden the channels of supervision. Adhere to establish “four good“ leadership activities, staff satisfaction rate of 98% to the team. -Group work dynamic. Promotin

13、g 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 mai

14、ntenance labor emulation and “health Cup“ competition, 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 disaste

15、r areas. This year, the company has won the “Su . Cutting costs can be controlled, money should not be wasted “management philosophy, management analysis, to improve management quality, improve cost control capacity and market competitiveness. Innovation of science and technology-science and technol

16、ogy 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 scie

17、ntific 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 consu

18、mption, 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 “foreign“ environmen

19、t for development. “XING“ refers to the “internal security firm and internal management of the internal management measures are effective, harmonious“. “Foreign currency“ means “Enterprise coordinating development of homeopathy, well, get along with the neighbors better.“ (B) XX 2013 five enterprise

20、s 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 cas

21、es of violation, zero accidents, zero. Quality goal is: when generating capacity 7.5第五章假设检验练习一、单项选择题1将由显著性水平所规定的拒绝域平分为两部分，置于概率分布的两边，每边占显著性水平的二分之一，这是（ b ） 。a. 单侧检验 b.双侧检验 c.右侧检验 d.左侧检验2.检验功效定义为（ b ） 。a. 原假设为真时将其接受的概率 b. 原假设不真时将其舍弃的概率c. 原假设为真时将其舍弃的概率 d. 原假设不真时将其接受的概率3.符号检验中， （+）号的个数与（-）号的个数相差较远时，意味着（c

22、 ） 。a.存在试验误差（随机误差） b.存在着条件误差c.不存在什么误差 d.既有抽样误差，也有条件误差4.得出两总体的样本数据如下：甲：8，6，10，7，8 乙：5，11，6，9，7，10秩和检验中，秩和最大可能值是（ c ） 。a. 15 b. 48 c. 45 d. 66二、多项选择题1.显著性水平与检验拒绝域关系（ a b d ）a. 显著性水平提高（ 变小） ，意味着拒绝域缩小b. 显著性水平降低，意味着拒绝域扩大c. 显著性水平提高，意味着拒绝域扩大d. 显著性水平降低，意味着拒绝域扩大化e. 显著性水平提高或降低，不影响拒绝域的变化marketing strict intern

23、al 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 “small“ and bilateral trade, access to

24、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 minute

25、s 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 appra

26、isal 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 le

27、aders, 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 “holding system implementation, and promoting the whole“

28、team-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 “six cultural construction of“ harmonious developm

29、ent, 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 corpo

30、rate 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 “Chinese cultural management advanced unit“, “National Advanc

31、ed Unit in the building of enterprise culture of reform and opening up 30“ and 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 acc

32、ident early warning and prevention system was rated as Chinas 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 “maintainsecurity, profit, mainta

33、in stability and promote harmonious development“ as the main content of the “three guarantees“ theme practice activities and “stressing party spirit, to conduct, for example“ campaign, party and further improvement of the level of work. Staff participating in the honest and clean culture constructio

34、n seminars, staffs sense of probity and enhanced. Founded by honestinspectors team composed of 12 employees to broaden the channels of supervision. Adhere to establish “four good“ leadership activities, staffsatisfaction rate of 98% to the team. -Group work dynamic. Promoting the openness of factory

35、 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

36、and “health Cup“ competition, 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 c

37、ompany has won the “Su . Cutting costs can be controlled, money should not be wasted “management 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

38、 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

39、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,

40、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 “foreign“ environment for development. “XING“

41、 refers to the “internal security firm and internal management of the internal management measures are effective, harmonious“. “Foreign currency“ means “Enterprise coordinating development of homeopathy, well, get along with the neighbors better.“ (B) XX 2013 five enterprises building intrinsic safe

42、ty 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 acc

43、idents, zero. Quality goal is: when generating capacity 7.5 1272. 错误（ a c d e ）a. 是在原假设不真实的条件下发生b. 是在原假设真实的条件下发生c. 决定于原假设与真实值之间的差距d. 原假设与真实值之间的差距越大，犯 错误的可能性就越小e. 原假设与真实值之间的差距越小，犯 错误的可能性就越大三、计算题1假设某产品的重量服从正态分布，现在从一批产品中随机抽取 16 件，测得平均重量为 820 克，标准差为 60 克，试以显著性水平 =0.01 与 =0.05，分别检验这批产品的平均重量是否是 800 克。解：假设

44、检验为 (产品重量应该80:,80:10H使用双侧检验)。采用 t 分布的检验统计量 。查出nxt/0.05 和 0.01 两个水平下的临界值(df=n-1=15)为 2.131 和2.947。 。因为 2.34(2.32)，所以拒绝原假设，无故310/5z障时间有显著增加。3回顾本章开头的案例，医院从 2008 年元旦出生的新生儿中随机抽取了 50 名，测量他们的平均体重为 3300 克，而 2007 年元旦时抽取的 50名新生儿的平均体重是 3200 克。现假设根据以住的调查，新生儿体重的标准差是 65 克。试问：（1）以 0.05 的显著性水平，检验新生儿体重在这两年中是否有显著的变化？

45、（2）计算检验的 p-值，并根据 p-值重新检验（1）中的结论。解：（1）假设检验为 。新生儿体重服320:,320:0H从正态分布，构造检验统计量 。查出 0.05 水平下的临界值nxz/为 1.645。计算统计量值 。因为 z1.645，所10.8755/6320以拒绝原假设。marketing strict internal cost control, business and innovation performance. -Increasing electricity access, price increase, electricity supply is guaranteed.

46、In 2012, the company with coal inventory, get rewards of Jiangsu provincial government power to 266 million kWh. Through the “small“ and bilateral trade, access to electricity 1.695 billion kWh, seeking removal compensation when the power 50 million-kilowatt, 116% market share in Jiangsu Province ra

47、nked 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 work

48、ers 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 secon

49、dary 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 “holding system implementation, and promoting the