Why are confidence intervals important? Because confidence intervals represent the range of scores that are likely if we were to repeat the survey, they are important to consider when generalizing results.

Why are confidence intervals necessary?

When we run studies we want to be confident in the results from our sample. Confidence intervals show us the likely range of values of our population mean. When we calculate the mean we just have one estimate of our metric; confidence intervals give us richer data and show the likely values of the true population mean.

What does confidence interval tell you?

What does a confidence interval tell you? he confidence interval tells you more than just the possible range around the estimate. It also tells you about how stable the estimate is. A stable estimate is one that would be close to the same value if the survey were repeated.