Business Statistics: For Contemporary Decision Making, 8th Edition

CHAPTER 7

Sampling and Sampling Distributions

LEARNING OBJECTIVES

The two main objectives for Chapter 7 are to give you an appreciation for the proper application of sampling techniques and an understanding of the sampling distributions of two statistics, thereby enabling you to:

1. Contrast sampling to census and differentiate among different methods of sampling, which include simple, stratified, systematic, and cluster random sampling; and convenience, judgment, quota, and snowball nonrandom sampling, by assessing the advantages associated with each.

2. Describe the distribution of a sample's mean using the central limit theorem, correcting for a finite population if necessary.

3. Describe the distribution of a sample's proportion using the z formula for sample proportions.

What Is the Attitude of Maquiladora Workers?

In 1965 Mexico initiated its widely known maquiladora program that permits corporations from the United States and other countries to build manufacturing facilities inside the Mexican border, where the company can import supplies and materials from outside of Mexico free of duty, assemble or produce products, and then export the finished items back to the country of origin. Mexico's establishment of the maquiladora program was to promote foreign investment and jobs ...