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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BATS Global Markets is a stock exchange based in Lenexa, Kansas, United States. BATS was founded in June 2005 as an electronic communication network (ECN) and its name initially stood for Better Alternative Trading System, which no longer applies.