Operation Manual

TI-83 Plus Inferential Statistics and Distributions 390
Selecting Data or Stats
Most inferential stat editors prompt you to select one of two types of
input. (
1
.
PropZInt
and
2
.
PropZTest
,
1
.
PropZInt
and
2
.
PropZInt
,
c
2
.
Test
, and
LinRegTTest
do not.)
•
Select
Data
to enter the data lists as input.
•
Select
Stats
to enter summary statistics, such as
þ
,
Sx
, and
n
, as
input.
To select
Data
or
Stats
, move the cursor to either
Data
or
Stats
, and then
press
Í
.
Entering the Values for Arguments
Inferential stat editors require a value for every argument. If you do not
know what a particular argument symbol represents, see the
Inferential
Statistics Input Descriptions tables
.
When you enter values in any inferential stat editor, the TI-83 Plus stores
them in memory so that you can run many tests or intervals without
having to reenter every value.