Texas Instruments TI-84 - Manual (Page 608)

Appendix A: Functions and Instructions 605
2-SampTTest v
1,Sx1,n1,
v2,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
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
,
v
1,n1,
v
2,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=
L
1 is <;
alternative=0 is
ƒ ;
alternative=1 is >.
drawflag=1 draws results;
drawflag=0 calculates
results.
†
…
TESTS
3:2-SampZTest(
Function or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item