Extras Flashcards
1
Q
Type 1 error
A
type I error is the incorrect rejection of a true null hypothesis (a “false negative”, i.e., rejecting a true hypothesis as incorrect),
2
Q
Type 2 error
A
type II error is the failure to reject a false null hypothesis (a “false positive”, i.e., accepting a false hypothesis as correct).
3
Q
Ordinal
A
not numerical but can be ordered
E.g. rank, satisfaction: poor, ok, good, very good etc.
4
Q
Nominal
A
categorically discrete like names of books, types of cars, sex etc. can not be ordered, no sense of order
Can not calculate a mean or average for nominal data
