Texas Instruments TI-84 Plus Guide Book

Appendix A: Functions and Instructions 605
2-SampTTest v1,Sx1,n1,
v2,Sx2,n2[,alternative,
pooled,drawflag]
(Summary stats input)
Computes a two-sample t
test. alternative=L1 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
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(
2-SampZInt(
s
1
,s
2
,
v1,n1,v2,n2
[,confidence level])
(Summary stats input)
Computes a two-sample z
confidence interval.
† …
TESTS
9:2-SampZInt(
2-SampZTest(s
1
,s
2
[,listname1,listname2,
freqlist1,freqlist2,
alternative,drawflag])
(Data list input)
Computes a two-sample z
test. alternative=
L1 is <;
alternative=0 is
ƒ;
alternative=1 is >.
drawflag=1 draws results;
drawflag=0 calculates
results.
† …
TESTS
3:2-SampZTest(
F
unction or
Instruction/Arguments Result
Key or
Keys/Menu or
Screen/Item

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-