Texas Instruments TI-Nspire CAS User Manual

98 Alphabetical Listing
LinRegtIntervals
Catalog >
LinRegtIntervals X,Y[,F[,0[,CLev]]]
For Slope. Computes a level C confidence
interval for the slope.
LinRegtIntervals X,Y[,F[,1,Xval[,CLev]]]
For Response. Computes a predicted y-value,
a level C prediction interval for a single
observation, and a level C confidence
interval for the mean response.
A summary of results is stored in the
stat.results variable. (See page 172.)
All the lists must have equal dimension.
X and Y are lists of independent and
dependent variables.
F is an optional list of frequency values.
Each element in F specifies the frequency of
occurrence for each corresponding X and Y
data point. The default value is 1. All
elements must be integers ≥ 0.
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 232.
Output variable Description
stat.RegEqn
Regression Equation: a+b•x
stat.a, stat.b Regression coefficients
stat.df Degrees of freedom
stat.r
2
Coefficientof determination
stat.r Correlation coefficient
stat.Resid Residuals from the regression
For Slope type only
Output variable Description
[stat.CLower, stat.CUpper] Confidence interval for the slope
stat.ME Confidence interval margin of error
stat.SESlope Standard error of slope

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