STAT 11300 Study Guide - Final Guide: Analog Science Fiction And Fact, Standard Deviation, Confidence Interval
Document Summary
95% confidence interval- is an interval calculated form sample data by a process that is guaranteed to capture the true population parameter in 95% of all samples. 95% confidence interval for a proportion- choose an sts of size n from a large population that contains an unknown proportion p of successes. Call the proportion of successes in this sample p. an approximate. 95% confidence interval for the parameter p is: Confidence interval- a level c confidence interval for a parameter has two parts: A confidence level c, which gives the probability that the interval will capture the true parameter value in repeated samples. Confidence interval for a population mean- choose an srs of size n from a large population of individuals having mean u. The mean of the sample observations is x(bar). When n is reasonably large, an approximate level c confidence interval for u is: x(bar) [+-] z* s/ sqrt(n)
