Spearmanâs rank correlation test is a test of significance based on Spearmanâs rank correlation coefficient (monotonic correlation between two ranked variables), which is carried out to detect the presence of heteroscedasticity. Assumptions of the test: Population correlation coefficent is 0.
N,N-Diethyl-meta-toluamide, also called DEET (/diËt/) or diethyltoluamide, is the most common active ingredient in insect repellents. It is a slightly yellow oil intended to be applied to the skin or to clothing, and provides protection against mosquitoes, ticks, fleas, chiggers, leeches, and many biting insects. 1 History.
Low DEET formula combined with a refreshing, light scent. 1  Repels mosquitos, biting flies, gnats, no-see-ums, and chiggers up to 2 hours. 2  Contains 5% DEET. 3  Ideal for use when: Relaxing in the backyard, Gardening, Entertaining outdoors, and Going to the playground.