Non-parametric testing is done when which of these are applicable? (Note: There are 3 correct answers).

Non-parametric testing is done when which of these are applicable? (Note: There are 3 correct answers).
A . When the traditional t tests don’t produce the results we need
B . A Hypothesis Test for the Median of the population is in question
C . It does not require data to come from Normally Distributed populations
D . They look at the Median rather than the Mean of populations
E . When there are no parameters to measure in the process

Answer: BCD