If the p value is less than or equal to, we reject the null hypothesis, otherwise we do not reject the null hypothesis. One tail and two tail tests. In a one tail test, the rejection region is at one end of the distribution or the other.In a two tail test, the rejection region is split between the two tails.4) Test statistic. As the population variance is known, we use z as the test statistic. (a) Distribution of test statistic. If the assumptions are correct and is true, the test statistic follows the standard normal distribution.
Cameron lesions are linear erosions or ulcerations of the mucosal folds lining the stomach where it is constricted by the thoracic diaphragm in persons with large hiatal hernias. The lesions may cause chronic blood loss resulting in iron deficiency anemia; less often they cause acute bleeding.
Reviewed by Editor on Feb 15, 2014. Broken capillaries are also known as a condition called Telangiectasia. These capillaries are also known as spider veins. Rosacea is a skin condition that is characterized as by permanent or semi-permanent redness of the face, or erythema.This redness can be distinguished as skin that only reddens sometimes such as in cases of blushing, or it can signal redness that does not fade away.lthough patients who have broken capillaries may not have the skin condition Rosacea, all patients who have Rosacea suffer with broken capillaries, and the facial redness that accompanies it.