Do we have to memorize CDFs/reliability factors?

[Logimech]

Do we have to memorize things such as:

95% confidence = +/- 1.96 standard deviations?


Thanks for the response.

 

[AcraftyOne]

Yes you do, you need to know the 90,95 and 99% levels, from what I can recall. One and Two tailed as well!

 

[Logimech]

What about for Student's t-distribution tables?

 

[JoeyDVivre]

no

 

[skillionaire]

You get the tables; as was stated above you need to know the "big three", 90, 95, and 99.