The following video will help you with the homework multiple-choice Ch 14 & 17 One-sample t confidence intervals.
Review of three different standard deviations
Standard deviation is a key concept in statistics. As a matter of fact, most of our formulas involve some kind of standard deviations. Here are the three standard deviations that we have encountered since the beginning of this semester:
-
-
- population standard deviation
- sample standard deviation
- standard deviation of the sampling distribution of the sample mean
-
The video below explains the similarity and difference between the three different standard deviations:
Standard deviations in 3 different contexts
-END-