What you will learn

• Explain ways to categorize variables and describe data.

  Describe how graphs are used to visualize data.

• Describe the logic of inferential statistics and null hypothesis significance testing.

  Select the appropriate inferential test based on criteria.

• Compare and contrast the use of statistical significance, effect size, and confidence intervals.

  Explain the importance of statistical power.

• Describe how alternative procedures address the major objections to null hypothesis significance testing.