Learning Objectives

  • Explain the purpose of hypothesis testing to determine the difference between a population mean and proportion and a sample mean and proportion.
     
  • Conduct and interpret the results of hypothesis tests for a sample mean and proportion.
     
  • Describe the difference between a directional (one-tailed) and nondirectional (two-tailed) null hypothesis test.
     
  • Evaluate the advantage of conducting a directional (one-tailed) hypothesis test compared to a nondirectional test.
     
  • Identity the appropriate sampling distribution to use for a one sample hypothesis test when the sample size is small.