Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Not an issue.
Not an issue. The reason for using the t statistic is in the description (you do not know the population standard deviation, so you need a t statistic). More details for those who are interested can be found in the linked articles. Thank you for the suggestion to use test values from different distributions. I'll consider that.