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TI-83 Plus Tables and Reference Information 682
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
2
.
SampTTest
[
listname1
,
listname2
,
f
re
q
list1
,
f
re
q
list2
,
alternative
,
p
ooled
,
draw
f
la
g
]
(Data list input)
Computes a two-sample
t
test.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
p
ooled
=
1
pools
variances;
p
ooled
=
0
does not pool
variances.
draw
f
la
g
=
1
draws results;
drawflag
=
0
calculates results.
†
…
TESTS
4:2-SampTTest
2
.
SampTTest
v
1
,
Sx1
,
n1
,
v
2
,
Sx2
,
n2
[
,
alternative
,
p
ooled
,
draw
f
la
g
]
(Summary stats input)
Computes a two-sample
t
test.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
p
ooled
=
1
pools
variances;
p
ooled
=
0
does not pool
variances.
draw
f
la
g
=
1
draws results;
drawflag
=
0
calculates results.
†
…
TESTS
4:2-SampTTest
2
.
SampZInt(
s
1
,
s
2
[
,
listname1
,
listname2
,
f
re
q
list1
,
f
re
q
list2
,
con
f
idence level
]
)
(Data list input)
Computes a two-sample
z
confidence interval.
†
…
TESTS
9:2-SampZInt(
2
.
SampZInt(
s
1
,
s
2
,
v
1
,
n1
,
v
2
,
n2
[
,
con
f
idence level
]
)
(Summary stats input)
Computes a two-sample
z
confidence interval.
†
…
TESTS
9:2-SampZInt(
2
.
SampZTest(
s
1
,
s
2
[
,
listname1
,
listname2
,
f
re
q
list1
,
f
re
q
list2
,
alternative
,
draw
f
la
g
]
)
(Data list input)
Computes a two-sample
z
test.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
draw
f
la
g
=
1
draws results;
draw
f
la
g
=
0
calculates
results.
†
…
TESTS
3:2-SampZTest(