A-30 Tables and Reference Information
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 30 of 58
Function or Instruction/
Arguments Result Key or Keys/
Menu or Screen/Item
Time Sets sequence graphs to plot
with respect to time.
† y [FORMAT]
Time 6-8
TInterval [listname,
freqlist,confidence level]
(Data list input)
Computes a t confidence
interval.
† …
TESTS
8:TInterval 13-17
TInterval
v
,Sx,n
[,confidence level]
(Summary stats input)
Computes a t confidence
interval.
† …
TESTS
8:TInterval 13-17
tpdf(x,df)Computes the probability
density function (pdf) for the
Student-t distribution at a
specified x value with specified
degrees of freedom df.
y [DISTR]
DISTR
4:tpdf(
13-30
Trace Displays the graph and enters
TRACE mode.
r3-18
T-Test
m
0[,listname,
freqlist,alternative,
drawflag]
(Data list input)
Performs a t test with
frequency freqlist.
alternative=L1 is <;
alternative=0 is ƒ;
alternative=1 is >. drawflag=1
draws results; drawflag=0
calculates results.
† …
TESTS
2:T-Test
13-11
T-Test
m
0, v,Sx,n
[,alternative,drawflag]
(Summary stats input)
Performs a t test with
frequency freqlist.
alternative=L1 is < ;
alternative=0 is ƒ ;
alternative=1 is >. drawflag=1
draws results; drawflag=0
calculates results.
† …
TESTS
2:T-Test
13-11