In this activity, students will perform a t-test to see if fecal coliform counts collected from Blackwater Creek in Lynchburg, Virginia differ before and after rain showers. Questions about the exercise and links to Excel and TI-83 instructions are given. The data exist in Excel, TI-83, and text formats.
Microsoft Excel or the TI-83 Graphing Calculators
Source Code Available:
Source Code Available
Intended User Role:
Free for All