Tinterval_2Samp; Tpdf; Trace() - Texas Instruments TI-Nspire Reference Manual

Output variable
stat.n

tInterval_2Samp

tInterval_2Samp
List1 List2 Freq1 Freq2
, [, [, [,
(Data list input)
v 1 sx1
tInterval_2Samp ,
(Summary stats input)
Computes a two-sample t confidence interval. A summary of results is
stored in the stat.results variable. (See page 97.)
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" on page 131.
Output variable
stat.CLower, stat.CUpper
x x
stat. 1- 2
stat.ME
stat.df
x x
stat. 1, stat. 2
s s
stat. x1, stat. x2
stat.n1, stat.n2
stat.sp

tPdf()

⇒
XVal df number
tPdf( , )
list
Computes the probability density function (pdf) for the Student-t
distribution at a specified x value with specified degrees of freedom
df.

trace()

⇒
squareMatrix
trace( )
Returns the trace (sum of all the elements on the main diagonal) of
squareMatrix.
104 TI-Nspire™ Reference Guide
Description
Length of the data sequence with sample mean
CLevel Pooled
[, ]]]]
n1 v 2 sx2 n2 CLevel Pooled
, , , , [, [,
Description
Confidence interval containing confidence level probability of distribution
Sample means of the data sequences from the normal random distribution
Margin of error
Degrees of freedom
Sample means of the data sequences from the normal random distribution
Sample standard deviations for List 1 and List 2
Number of samples in data sequences
The pooled standard deviation. Calculated when Pooled = YES
XVal list
if is a number, if
value
]]
XVal
is a
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