ezoic

Sunday, July 29, 2018

differences between t test and z test



                distribution                                            sample size      variance known or unknown
t test       normally distributed                                can be small      unknown
z test      no requirements for normality b/c clt      is large              known

No comments:

Post a Comment

R is not a simple programming language, and it does better on reading excel files than python

R is not a simple programming language, and it does better on reading excel files than python . tried to read excel files to python and R. i...