In the hypothesis testing approach of Jerzy Neyman and Egon Pearson, a null hypothesis is contrasted with an alternative hypothesis, and the two hypotheses are distinguished on the basis of data, with certain error rates. Proponents of each approach criticize the other approach.
In geography, relief refers to the highest and lowest elevation points in an area. Mountains and ridges are typically the highest elevation points, while valleys and other low-lying areas are the lowest. Relief is essential to understanding the topography of an area.
3. Valerian Root Relaxes Pain. Often called nature's tranquilizer, valerian has been used for centuries to regulate the nervous system and relieve insomnia, tension, irritability, stress, and anxiety. Valerian is also a natural pain reliever that reduces sensitivity of the nerves. Try a cup of valerian tea the next time youâre in need of pain relief! 4. Eucommia for Your Aching Back and Joints. Traditional Chinese medical practitioners use eucommia bark for back and joint pain, especially in the hips and knees, and also to strengthen bones, tendons and ligaments.