A t-test can be used to account for the uncertainty in the sample variance when the sample size is small and the data are exactly normal. There is no universal constant at which the sample size is generally considered large enough to justify use of the plug-in test. Typical rules of thumb range from 20 to 50 samples.
Each symbol and color in the National Law Enforcement Explorers seal has special significance. 1  The circular form of the seal represents continuous existence. 2  The dominant blue field represents justice. 3  The inner circle contains a shield surmounted by an eagle.
Gang members are known for wearing bandanas around their face as a mask, or in their pocket, with it sticking out. Jerseys. Jerseys are common in the gang world for brandishing the colors a member's gang. They contain multiple colors, they represent the city or region where the gang resides, and they are also customizable to show specific numbers or words. Today Legal Ramifications. The prevalence of gang colors has declined in popularity over the past few years. In order to crack down on gang related crimes legislation has been passed to increase penalties for crimes committed by gangs or gang members.