A confidence interval addresses this issue because it provides a range of values which is likely to contain the population parameter of interest. Confidence levels. Confidence intervals are constructed at a confidence level, such as 95 %, selected by the user.
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Drum Corp International. An organization that sets the standards for drum and bugle corps to compete. Includes many World class corps and even more Open class corps. Some of the big named corps are: The Cavaliers, Phantom Regiment, Santa Clara Vanguard, and The Cadets. DCI is unique in the way of competition by the fact that there is no defense.