One of the areas where you have seen confidence intervals regularly and probably weren't aware of it is with published poll results. If you go to PollingReport (https://pollingreport.com/Links to an external site.), you will find a list of various topics and polls for each topic. These poll results are always presented with a margin of error, typically 3-4%. The percentages in the result are the point estimates for each category of answers and the margin of error is added and subtracted to the point estimate to get the confidence interval. In scholarly journals, confidence intervals are often reported in the following way: 95% CI=0.26, 0.74 and 95% CI, 1.27-1.50. They are most likely to be found in articles presented research or studies