Confidence intervals 16.422 A confidence interval gives an estimated range of values which is likely to include an unknown population parameter, given set of sample data The confidence interval is the likely range of the true value Precision determined by the width of the confidence interval correlation coefficient Conclusion about observed 1-0.500.000.50 population value lower upper could be anything confidence confidence size li mit limit 16 possibly moderate 64 pobably large 256 definitely large 0.00 0.50 correlation coefficient 1024 definitely large (Courtesy of Will Hopkins. Used with permission http://www.sportsci.org/resource/stats/generalize.htmlConfidence Intervals 16.422 • A confidence interval gives an estimated range of values which is likely to include an unknown population parameter, given set of sample data. – The confidence interval is the likely range of the true value. • Precision determined by the width of the confidence interval • http://www.sportsci.org/resource/stats/generalize.html (Courtesy of Will Hopkins. Used with permission.)