Typically when researching a business or academic issue, you would ask a question about something and form a hypothesis. You would then collect the data and test it to see if the null hypothesis (no difference) is supported or refuted. Then you would present the findings.

For the purposes of this exam, we are revising some of these steps to focus on the statistical testing and interpretation aspect of hypothesis testing.

The final exam in this course is a "practical exam" that spans Modules 8 and 9. In this Part I assignment, you will review a data set and construct a hypothesis statement. In the Module 9, Part II assignment, you will run the appropriate tests and interpret the results. The Final Practical Exam is worth 15% of your final grade.

Before you get started, review the Module 7 - Heads-Up: Final Practical Exam page for additional details.

Now, open and carefully examine the data on the STAT 211 Altimeter Error spreadsheet (XLSX). Download STAT 211 Altimeter Error spreadsheet (XLSX).Also, review the Exam Related Resources section of the Module 8 - Readings & Resources page to see demonstrations on how to run statistical tests in Excel.

Then, construct a hypothesis and address the following in a document.

• Describe what you are comparing.
• State your hypothesis in a sentence.
• Indicate the appropriate t-test that you will use to evaluate your hypothesis.
• State the alpha () level.