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The Mann-Whitney U-test is used to test whether two independent samples of observations are drawn from the same or identical distributions. An advantage with this test is that the two samples under consideration do not necessarily need to have the same number of observations or instances.
Flexibility Tests. Use these flexibility tests before you begin a stretching program and then every 6-8 weeks during your flexibility training. Before you perform these tests make sure you warm up thoroughly with 10 minutes of light jogging or skipping.Click here for details on how to put together a battery of physical fitness tests.. Sit on the floor with your back and head against a wall. Legs should be out straight ahead and knees flat against the floor. 2. Have someone place the box flat against your feet (no shoes). Keeping your back and head against the wall stretch your arms out towards the box.