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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.
The description stated length less than 3 should return false, but this is not implemented. Non letters should not be considered
more sample test to know whether the code is working?
should ask the function to return a tuple with the order swapped
In the intro might be useful to add why the T statistic is used. Most are more familiar with the 2 standard deviation. Also maybe using test values from different distributions e.g poisson or runif to see how skew the CI can be