Hypothesis Testing Using Z-Scores
n
Hypothesis testing
Ð tests relationship between X and
m
1.
results are descriptive of X to
m
2.
3 possible alternative hypotheses (H
1
)
n
X =
m
0
n
X <
m
0
n
X >
m
0
n
n
H
0
:
X =
m
0
n
H
1
:
X
¹
m
0
Always
assume
H
0
is true
n
n
In Research
Ð we want to reject H
0
Ð this indicates our
X
is
different from
m
0