統(tǒng)計學(xué)

內(nèi)容概要

　　本書講述:在經(jīng)濟管理工作中，我們時刻都面對著大量的信息，因此，作為數(shù)據(jù)處理與分析技術(shù)的統(tǒng)計方法是我們必須掌握的。本書著眼于統(tǒng)計學(xué)在經(jīng)濟管理領(lǐng)域的應(yīng)用，在設(shè)計上具有實用性、靈活性和新穎性的特點。從實用的角度出發(fā)，本書側(cè)重于教會學(xué)生如何根據(jù)手頭問題判定選擇恰當(dāng)?shù)慕y(tǒng)計方法、計算統(tǒng)計量和做出合理解釋。本書中給領(lǐng)出數(shù)據(jù)處理的多種方式供教師選擇，使教學(xué)變得靈活。本書的新穎之處在于，在每一經(jīng)濟管理領(lǐng)域都強調(diào)統(tǒng)計應(yīng)用并給出了具體的應(yīng)用模式。

作者簡介

杰拉德·凱勒博士是羅瑞爾大學(xué)講授統(tǒng)計學(xué)、管理科學(xué)和運籌管理學(xué)的教授。同時，他還任教于多倫多大學(xué)、邁阿密大學(xué)、麥克馬斯特大學(xué)、溫莎大學(xué)和北京科技大學(xué)。凱勒教授還曾擔(dān)任銀行關(guān)于信用卡計分和信用卡違約方面的咨詢顧問并曾參與加拿大政府關(guān)于能源消耗方面的市場調(diào)查。    凱勒教授曾出版過Appfied Statistics with Microsoft Excel一書，并在OMEGA，IIE Transactions，Decision Sconces，INFOR，Economics Letters等雜志上發(fā)表過文章。1997—2000年間，他還在溫莎大學(xué)為金融分析師舉辦的論壇上擔(dān)任講師。    凱勒教授的《統(tǒng)計學(xué)》一書自1988年出版以來，受到統(tǒng)計學(xué)師生和在工作中需要統(tǒng)計學(xué)知識的管理人員的好評，已經(jīng)再版7次。

書籍目錄

Preface
Guided Book Tour
1 What Is Statistics
2 Numerical Descriptive Techniques
3 Data Collection and Sampling
4 Sampling Distributions
5 Introduction to Estimation
6 Introduction to Hypothesis Testing
7 Inference about a Population
8 Inference about Comparing Two Populations
9 Analysis of Variance
10 Simple Linear Regression and correlation

章節(jié)摘錄

版權(quán)頁：   插圖：   Example 7.5 Exit Polls （see Chapter 7） When an election for political office takes place， the television networks cancel regular programming and provide election coverage instead. When the ballots are counted， the results are reported. However， for important offices such as president or senator in large states， the networks actively compete to see which will be the first to predict a winner. This is done through exit polls， wherein a random sample of voters who exit the polling booth is asked for whom they voted. From the data the sample proportion ofvoters supporting the candidates is computed. A statistical technique is applied to determine whether there is enough evidence to infer that the leading candidate will garner enough votes to win. Suppose that the exit poll results from the state of Florida during the 2000 year elections were recorded.Although there were a number of candidates running for president， the exit pollsters recorded only the votes of the two candidates who had any chance of winning， the Republican candidate George W. Bush and the Democrat Albert Gore. The results （765 people who voted for either Bush or Gore） were stored on a file on the disk. The network analysts would like to know whether they can conclude that George W. Bush will win the state of Florida. Example 7.5 describes a very common application of statistical inference. The population the television networks wanted to make inferences about is the approximately 5 million Floridians who voted for Bush or Gore for president.The sample consisted of the 765 people randomly selected by the polling company who voted for either of the two main candidates. The characteristic of the population that we would like to know is the proportion of the Florida total electorate that voted for Bush. Specifically， we would like to know whether more than 50% of the electorate voted for Bush （counting only those who voted for either the Republican or Democratic candidate）. It must be made clear that， because we will not ask every one of the 5 million actual voters for whom they voted， we cannot predict the outcome with 100% certainty. This is a fact that statistics practitioners and even students of statistics must understand. A sample that is only a small fraction of the size of the population can lead to correct inferences only a certain percentage'of the time. You will find that statistics practitioners can control that fraction and usually set it between 90% and 99%.

編輯推薦

《經(jīng)濟學(xué)經(jīng)典教材?核心課系列:統(tǒng)計學(xué)在經(jīng)濟和管理中的應(yīng)用(第8版)》由杰拉德?凱勒著，與其他看重數(shù)理推導(dǎo)的統(tǒng)計學(xué)書籍不同，這本全球最暢銷的管理統(tǒng)計學(xué)書籍強調(diào)商業(yè)統(tǒng)計在實踐中的應(yīng)用，希望通過實例教會學(xué)生如何選擇正確的統(tǒng)計方法來分析實際問題。

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