S2 definitions 5.0 / 5 based on 1 rating ? StatisticsDefinitionsA2/A-levelEdexcel Created by: CymbelineCreated on: 21-06-14 07:43 Sample Chosen Members of a population 1 of 13 Sample survey investigation using a sample 2 of 13 Sampling unit individual units of a population 3 of 13 Sampling frame a list of sampling units within a population 4 of 13 Sampling distrubution gives values of a statistic and the probability that each would happen by chance alone 5 of 13 Statistic an RV that is a function of the sample and has no unknown parameters 6 of 13 Population collection of individual people or items, maybe finite or infinite 7 of 13 Population parameter a measurable characteristic of a population 8 of 13 Census information obtained from an entire population 9 of 13 Hypothesis testing An experiment to examine the value of a population parameter proposed by comparing Ho with H1 10 of 13 Critical region set of values in a test statistic that leads us to reject the null hypothesis. 11 of 13 Hypothesis A statement concerning a population parameter 12 of 13 Actual significance level the probability of incorrectly rejecting Ho in a critical region 13 of 13
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