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.
relief (rÉªËliËf) n 1. a feeling of cheerfulness or optimism that follows the removal of anxiety, pain, or distress: I breathed a sigh of relief. 2. deliverance from or alleviation of anxiety, pain, distress, etc 3. (Social Welfare) a. help or assistance, as to the poor, needy, or distressed b. (as modifier): relief work. 4. short for tax relief. 5. something that affords a diversion from monotony. 6. a person who replaces or relieves another at some task or duty. 7. a bus, shuttle plane, etc, that carries additional passengers when a scheduled service is full. 8. (Human Geography) a road (relief road) carrying traffic round an urban area; bypass. 9.