Steps for Constructing a Confidence Interval 1. Find the point estimate. 2. Find the critical value using the calculator. 3. Find the standard error and multiply it by the critical value to obtain the margin of error. 4. Construct the confidence interval: point estimate + margin of error 5. Interpret the confidence interval using wording and units from the problem: "We is between % confident that the true (insert units). are and Page 2