October 2011
Intermediate to advanced
928 pages
36h 13m
English
Content preview from Business Statistics: For Contemporary Decision Making, 7th Edition
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CHAPTER 9
Statistical Inference: Hypothesis Testing for Single Populations
LEARNING OBJECTIVES
The main objective of Chapter 9 is to help you to learn how to test hypotheses on single populations, thereby enabling you to:
- Develop both one- and two-tailed null and alternative hypotheses that can be tested in a business setting by examining the rejection and non-rejection regions in light of Type I and Type II errors.
- Reach a statistical conclusion in hypothesis testing problems about a population mean with a known population standard deviation using the z statistic.
- Reach a statistical conclusion in hypothesis testing problems about a population mean with an unknown population standard deviation using the tstatistic.
- Reach a statistical conclusion in hypothesis testing problems about a population proportion using the z statistic.
- Reach a statistical conclusion in hypothesis testing problems about a population variance using the chi-square statistic.
- Solve for possible Type II errors when failing to reject the null hypothesis.
Word-of-Mouth Business Referrals and Influentials
Word-of-mouth information about products and services is exchanged on a daily basis by millions of consumers. ...
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