Using t Tests
This week's Introduction about a NASA rocket provided an example of when a t test may be used in a real-life situation. In this Discussion, you will analyze a research question of your choice using a t test.
To prepare for this Discussion:
- Review problems 17–24 on pages 416–417 of your text, which show how t tests can be used to analyze real-life data. Think about how you might answer each of the questions.
- Think about two small sets of real-life data that you could compare and analyze using a t test. This could include information you have read about that you are interested in testing. For example, think of data that could answer the question, "Does Product A really perform better than Product B?" or "Are the temperatures during a certain week in my city really that different from its temperatures 50 years ago?"
- Consider why your research question is important.
- Identify the dependent and independent variables.
- Determine how you would use the four-step hypothesis test process to answer the research question.
- Think about how using a t test could help your analysis.
With these thoughts in mind:
Post by Day 3 a 1- to 2-paragraph write-up including the following:
- Describe your research question, and explain its importance.
- Identify the dependent and independent variables of the question you chose.
- Describe how you would use the four-step hypothesis test process to answer your research question.
- Explain how using a t test could help you answer your research question.