Unit4Disc1

Unit4Disc1QDA

Applying Hypothesis Testing

For this discussion, answer the following questions:

• What is a null hypothesis?
• What is an alternative hypothesis?

Then articulate a null hypothesis and alternative hypothesis for a research study that pertains to your area of specialization.

• What conclusions can be drawn from this study with a "statistically significant" result?

Readings

Use your Warner text, Applied Statistics: From Bivariate Through Multivariate Techniques, to complete the following:

• Read Chapter 3, "Statistical Significance Testing," pages 81–124. This reading addresses the following topics: 
  • The logic of null hypothesis testing.
  • Type I and Type II errors.
  • The z test.
  • Null hypothesis and alternative hypothesis.
  • Limiting Type I error.
  • Effect size.
  • Statistical power.

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