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Tables and Reference Information A-25
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 25 of 58
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
2
.
SampTTest
v
1
,
Sx1
,
n1
,
v
2
,
Sx2
,
n2
[
,
alternative
,
pooled
,
drawflag
]
(Summary stats input)
Computes a two-sample
t
test.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
pooled
=
1
pools variances;
pooled
=
0
does
not pool variances.
drawflag
=
1
draws results;
drawflag
=
0
calculates results.
†
…
TESTS
4:2
.
SampTTest
13
-
13
2
.
SampZInt(
s
1
,
s
2
[
,
listname1
,
listname2
,
freqlist1
,
freqlist2
,
confidence level
]
)
(Data list input)
Computes a two-sample
z
confidence interval.
†
…
TESTS
9:2
.
SampZInt(
13
-
18
2
.
SampZInt(
s
1
,
s
2
,
v
1
,
n1
,
v
2
,
n2
[
,
confidence level
]
)
(Summary stats input)
Computes a two-sample
z
confidence interval.
†
…
TESTS
9:2
.
SampZInt(
13
-
18
2
.
SampZTest(
s
1
,
s
2
[
,
listname1
,
listname2
,
freqlist1
,
freqlist2
,
alternative
,
drawflag
]
)
(Data list input)
Computes a two-sample
z
test.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
drawflag
=
1
draws results;
drawflag
=
0
calculates results.
†
…
TESTS
3:2
.
SampZTest(
13
-
12
2
.
SampZTest(
s
1
,
s
2
,
v
1
,
n1
,
v
2
,
n2
[
,
alternative
,
drawflag
]
)
(Summary stats input)
Computes a two-sample
z
test.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
drawflag
=
1
draws results;
drawflag
=
0
calculates results.
†
…
TESTS
3:2
.
SampZTest(
13-12
Sci
Sets scientific notation display
mode.
†
z
Sci
1
-
10
Select(
Xlistname
,
Ylistname
)
Selects one or more specific
data points from a scatter plot
or xyLine plot (only), and then
stores the selected data points
to two new lists,
Xlistname
and
Ylistname
.
y
[
LIST
]
OPS
8:Select(
11
-
12