LEARNING OBJECTIVES
After studying this chapter, you should be able to:

• Apply nonprobability sampling methods.
• Decide when to use a stratified sampling method.
• Compute estimates from stratified sample results.
• Decide when to use a cluster sampling method.
• Compute estimates from cluster sampling results.
• Decide when to use a systematic sampling method.
• Compute estimates from systematic sampling results.
• Avoid nonresponse biases in estimates.