Evaluate an aircraft altimeter data sample from different companies to determine if there are any differences in error. You have the following three options for running the appropriatet-test.

• Option 1 - compare one brand against a hypothesized mean to determine if the brand is statistically different than the assumed norm. In this case, you would have to cite where the hypothesized population mean came from.

Based on the type of dependent variable data (ratio) and the type of question in the scenario, you will use at-test. As you know, there are three different types oft-tests you can use:

• One samplet-test (test for one population mean using Excel)