Business Statistics: For Contemporary Decision Making, 7th Edition

CHAPTER 10

Statistical Inferences about Two Populations

LEARNING OBJECTIVES

The general focus of Chapter 10 is on testing hypotheses and constructing confidence intervals about parameters from two populations, thereby enabling you to:

1. Test hypotheses and develop confidence intervals about the difference in two means with known population variances using the zstatistic.
2. Test hypotheses and develop confidence intervals about the difference in two means of independent samples with unknown population variances using the t test.
3. Test hypotheses and develop confidence intervals about the difference in two dependent populations.
4. Test hypotheses and develop confidence intervals about the difference in two population proportions.
5. Test hypotheses about the difference in two population variances using the F distribution.

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