Chapter 13: Inferential Statistics and Distributions
227
1-PropZTest
1-PropZTest
(one-proportion
z
test; item
5
) computes a test for an unknown proportion of
successes (prop). It takes as input the count of successes in the sample
x
and the count of
observations in the sample
n
.
1-PropZTest
tests the null hypothesis H
0
: prop=p
0
against one of the
alternatives below.
•
H
a
: prop
ƒ
p
0
(
prop:
ƒ
p0
)
•
H
a
: prop<p
0
(
prop:<p0
)
•
H
a
: prop>p
0
(
prop:>p0
)
Input:
Calculated
results:
Drawn
results:
