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Unformatted text preview: prediction or decision about a population based on sample data. May not always be correct. As a result, we have built into the statistical inference a couple of measures of reliability. Confidence levelthe proportion of times that an estimating procedure would be correct, if the sampling procedure were repeated a very large number of times. Significance levelhow frequently the conclusion will be wrong in the long run. Make sure you read Appendix 1.A and 1.B (pages 914). It explains how to get started with Excel....
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 Spring '08
 CathyDavis
 Statistics, Histograms, Inferential Statistics, Mean, Median, Mode

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