# qa defs

 The flashcards below were created by user codyrayh on FreezingBlue Flashcards. continuity correction factor 1. atleast X occurs = x-.52. more than X occurs= x+.53. x or fewer occurs= x+.54.fewer than x occurs=x-.5 simple random sample a sample selected so that each item or person in the population has the same chance of being included systematic random sample a random starting point is selected, and then every kth member of the population is selected stratified random sample a population is divided into subcatagories, called strat, and a sample is randomly selected from each stratum cluster sample a population is dvided into clusters using naturally occuring geographic or other boundaries. then clusters are randomly selected and a sample is collected by randomly selecting from each cluster sampling error the diff between a sample statistic and its corresponding population parameter sampling distribution of the sample mean a probability distribution of all possible sample meant of a given size central limit theorem if all samples of a particular size are selected from any population, teh sampling distribution of the sample mean is approximately a normal distribution. this approximation improves with larger samples point estimate the statistic, computed from sample information which is used to estimate the population paremeter confidence interval a range of values constructed from a sample data so that the population parameter is likely to occur within that range at a specified probability. the specified probability is called the level of convidence Authorcodyrayh ID17833 Card Setqa defs Descriptiondefinition Updated2010-05-05T02:25:27Z Show Answers