Operation Manual

TI-83 Plus Inferential Statistics and Distributions 402
Drawn results:
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:
,