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.
Symptoms of osteoarthritis may include joint pain and progressive stiffness that develops gradually. Symptoms of rheumatoid arthritis may include painful swelling, inflammation, and stiffness in the fingers, arms, legs, and wrists occurring in the same joints on both sides of the body, especially upon awakening.ommon arthritis symptoms of pain and stiffness are usually caused by degenerative arthritis (osteoarthritis). The more than 100 types of arthritis include rheumatoid arthritis and gout.