Type of Study: (using the lower value from ITE to provide greater accuracy)
Enter the distance of the segment in miles:
Enter elapsed times for each run in seconds, separated by commas (e.g., 613, 484, 662, 570):
| Average Range in Running Speed, R̄ (mph) |
Minimum Number of Test Runs, Nᵼ, for a Permitted Error of | ||||
|---|---|---|---|---|---|
| 1.0 mph | 2.0 mph | 3.0 mph | 4.0 mph | 5.0 mph | |
| 2.5 | 4 | 3 | 2 | 2 | 2 |
| 5.0 | 8 | 4 | 3 | 3 | 2 |
| 10.0 | 21 | 8 | 5 | 4 | 3 |
| 15.0 | 38 | 14 | 8 | 6 | 5 |
| 20.0 | 59 | 21 | 12 | 8 | 6 |