ERROR TYPES Flashcards
1
Q
Type 1
A
Reject true null hypothesis incorrectly= false+ve
States sig result
2
Q
Type 2
A
Accept null hypothesis unfortunately
True result sig but reported as no sig diff
3
Q
5%
A
0.05 prob distribution of results would occur even if null hypothesis was true
Good comp betw too lininent and stringent
Compromise between type1 and 2
4
Q
1%
A
Used to be more certain
Avoided as Too stringent and Inc type 2 error
5
Q
10%
A
Less certain
Avoided for lineincy and type 1 error
6
Q
Norm distribution
A
Symmetrical and no bias
Bell shape
Mean mode median
7
Q
+ve skew
A
More left, extreme right
Tail positive direction
Mode median mean
8
Q
-ve skew
A
More right, extreme left
Tail negative direction
Mode median mean
