illustrate several solutions of confidence interval type problems using Statdisk
When solving these types of problem it is most helpful to use some sort of technology rather than doing the calculations by hand - be sure to notice if the standard deviation is a SIGMA (population SD) or an S (sample SD) since you will get different results if you use the wrong one!
Sophia college courses cost up to 80% less than traditional courses*. Start a free trial now.
