6. normality/ parametric Flashcards
1
Q
RECAP on parametric
A
Central tendencies
required data from normal distribution
assumes null
interval and ratio
2
Q
whats a z score
A
number SD away from mean
3
Q
z score 1 mean
A
1 sd away from mean
4
Q
how to calculate z score
A
Z= x(value) - u (mean samp) / SD
(value means results like 1 person =23 anounther results may be 45.
5
Q
ks and sw difference
A
ks larger 50 sample size.
sw smaller 50 sample size
6
Q
ks and sw similarities
A
both tests of normality
therefore both testing for null
7
Q
order of tests
A
first look at ks- if null
look as SW test-