Texas Instruments TI-Nspire CAS User Manual

tTest_2Samp
Catalog >
Computes a two-sample t test. A summary
of results is stored in the stat.results
variable. (See page 172.)
Test H
0
: μ1 = μ2, against one of the
following:
For H
a
: μ1< μ2, set Hypoth<0
For H
a
: μ1≠ μ2 (default), set Hypoth=0
For H
a
: μ1> μ2, set Hypoth>0
Pooled=1 pools variances
Pooled=0 does not pool variances
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 232.
Output variable Description
stat.t Standard normal value computed for the difference of means
stat.PVal Smallest level of significance at whichthe null hypothesis can be rejected
stat.df Degrees of freedom for the t-statistic
stat.v1, stat.v2
Sample means of the data sequences in List 1 and List 2
stat.sx1, stat.sx2
Sample standard deviations of the data sequences inList 1 and List 2
stat.n1, stat.n2 Size of the samples
stat.sp
The pooled standard deviation. Calculated when Pooled=1.
tvmFV()
Catalog >
tvmFV(N,I,PV,Pmt,[PpY],[CpY],[PmtAt])
⇒ value
Financial function that calculates the future
value of money.
Note: Arguments used in the TVM functions
are described in the table of TVM
arguments, page 191. See also amortTbl(),
page 12.
tvmI()
Catalog >
tvmI(N,PV,Pmt,FV,[PpY],[CpY],[PmtAt])
⇒ value
Alphabetical Listing 189

Texas Instruments TI-Nspire CAS Specifications

General

Type	Graphing
Cover	-
Form factor	Pocket
Control type	Buttons, Touch
Product color	Grey, Silver
Digits	- digits
Display tilting	No
Display resolution	320 x 240 pixels
Display number of lines	- lines
Compatible operating systems	Windows XP/2000\\r Mac OS X 10.4/10.5
Battery type	AAA
Power source	Battery
Number of batteries supported	4
USB port	Yes
USB 2.0 ports quantity	1
RAM capacity	16 MB
ROM capacity	20 MB

Weight and Dimensions

Depth	198.3 mm
Width	100 mm
Height	28.7 mm