SOCIOL 3H06 Chapter Notes - Chapter 6: Frequency Distribution, Null Hypothesis, Standard Deviation
27 Dec 2014
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Document Summary
Population (universe): any set of individuals who share at least one characteristic. Sample: a smaller number of individuals taken from some population (for the purpose of generalizing to the entire population from which it was taken) Sampling distribution of means: a frequency distribution of a large number of random sample means that have been drawn from the same population (cid:229) (cid:229) (cid:229) (cid:229) (cid:229) Standard error of the mean: an estimate of the standard deviation of the sampling distribution of means based on the standard deviation of a single random sample. Confidence interval: the range of mean values (proportions) within which the true population mean (proportion) is likely to fall. Level of confidence: how certain we are that a confidence interval includes the true population mean (proportion) 95% confidence interval: the range of mean values (proportions) within which there are 95 chances out of 100 that the true population mean (proportion) will fall.
