Statistical tests can be either one or two-sided, and this is important for finding the critical value of a test. Below are three possible null and alternative hypotheses for a single sample mean test. Given the same alpha, each of the three tests would have a different critical value (or values).
Warning Signs of Osteoarthritis. 1  Pain and stiffness in a joint after getting out of bed or sitting for long. 2  Swelling in one or more joints, especially those at the ends of the fingers (closest to the nail), thumbs, neck, lower back, knees, and hips. 3  Crunching feeling or the sound of bone rubbing on bone.
What Are the Symptoms of Osteoarthritis of the Hip? If you have any of the following symptoms of hip osteoarthritis, talk to your doctor: Joint stiffness that occurs as you are getting out of bed; Joint stiffness after you sit for a long time; Any pain, swelling, or tenderness in the hip joint; A sound or feeling (crunching) of bone rubbing against bone