Download PDF Statistics for Business and Economics EIGHTH EDITION by Paul Newbold

Sinopsis

Statistics are used to predict or forecast sales of a new product, construction costs, customer-satisfaction levels, the weather, election results, university enrollment figures, grade point averages, interest rates, currencyexchange rates, and many other variables that affect our daily lives. We need to absorb and interpret substantial amounts of data. Governments, businesses, and scientific researchers spend billions of dollars collecting data. But once data are collected, what do we do with them? How do data impact decision making?

In our study of statistics we learn many tools to help us process, summarize, analyze, and interpret data for the purpose of making better decisions in an uncertain environment. Basically, an understanding of statistics will permit us to make sense of all the data.

In this chapter we introduce tables and graphs that help us gain a better understanding of data and that provide visual support for improved decision making. Reports are enhanced by the inclusion of appropriate tables and graphs, such as frequency distributions, bar charts, pie charts, Pareto diagrams, line charts, histograms, stem-and-leaf displays, or ogives. Visualization of data is important. We should always ask the following questions: What does the graph suggest about the data? What is it that we see?

Content

1. CHAPTER 1 Describing Data: Graphical 
2. CHAPTER 2 Describing Data: Numerical 
3. CHAPTER 3 Probability 
4. CHAPTER 4 Discrete Random Variables and Probability Distributions 
5. CHAPTER 5 Continuous Random Variables and Probability Distributions 
6. CHAPTER 6 Sampling and Sampling Distributions 
7. CHAPTER 7 Estimation: Single Population 
8. CHAPTER 8 Estimation: Additional Topics 
9. CHAPTER 9 Hypothesis Testing: Single Population 
10. CHAPTER 10 Hypothesis Testing: Additional Topics 
11. CHAPTER 11 Simple Regression 
12. CHAPTER 12 Multiple Regression 
13. CHAPTER 13 Additional Topics in Regression Analysis
14. CHAPTER 14 Analysis of Categorical Data 
15. CHAPTER 15 Analysis of Variance 
16. CHAPTER 16 Time-Series Analysis and Forecasting 
17. CHAPTER 17 Additional Topics in Sampling

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