S2 Definitions 4.5 / 5 based on 2 ratings ? MathematicsStatistics, averages and distributionsProbabilityA2/A-levelEdexcel Created by: LivCreated on: 01-06-16 12:38 Statistic A random variable that is a function of the sample which contains no unknown parameters. 1 of 10 Population A collection of all items. 2 of 10 Sample Some subset of the population which is intended to be representative of the population. 3 of 10 Census When every member of the population is sampled. 4 of 10 Sampling unit Individual member of the population. 5 of 10 Sampling frame A list of all the sampling units. 6 of 10 Sampling distribution All possible samples are chosen from a population. The values of a statistic and the associated probabilities is a sampling distribution. 7 of 10 Critical region The range of values which would lead you to reject the null hypothesis. 8 of 10 Hypothesis test A procedure to examine a value of a population parameter proposed by the null hypothesis. 9 of 10 Significance level The probability of incorrectly rejecting the null hypothesis. 10 of 10
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