Can someone explain to me what you are supposed to do in order to figure out where on the lines you know how far to each side and how to figure out how to find out how much line over laps one another? I understand how you figure out the Margin or error and Confidence Interval but when there is more then one line, in the picture below; each line over lapping is different and I am unsure of how you figure out each line.

Thanks,

Unit 6: Statistics Lesson 6.4: Confidence Intervals true value (usually unknown) these confidence intervals do 80% confidence intervals not include the true value Note: These 80% confidence intervals were determined using the same samples as the 95% intervals. Notice that the confidence intervals are narrower than the 95% confidence intervals and that 16 of 20, or 80%, of them include the true value. Confidence Interval vs. Confidence Level Confidence Interval Confidence Levels . Is the range inside which the true . Describes how likely it is that a value is expected to be. confidence interval contains the true value. . Is a range of values such as 24 + 2.2 . Is a single value such as 95%, 19 out or 21.8 to 26.2. of 20 or 19 20 The size of the confidence interval . Decided before the study is conducted (difference between lower and upper and is used by the statistician to values) is twice the size of the margin calculate the confidence interval. of error. . Is a result of the study. calculable range of To be confident means values that you are certain . If the survey was repeated numerous 62. 990 and 69. 19. times with different samples of canadians 95% of the time the outcome would lie within 62.990 and 69. 19 ADLC Mathematics 20-2 83