This activity is also part of one or more other Books. Modifications will be visible in all these Books. Do you want to modify the original activity or create your own copy for this Book instead?
This activity was created by '{$1}'. Do you want to modify the original activity or create your own copy instead?
This activity was created by '{$1}' and you lack the permission to edit it. Do you want to create your own copy instead and add it to the book?
Standard Normal v.s. Student's t distribution
Change the Degree of Freedom and value of alpha (1 - Confidence Level) to see how the critical values change under the Standard Normal and the Student's t distributions.