Tcdf; Text; Then; Tinterval - Texas Instruments TI-Nspire Reference Manual

tCdf()

lowBound upBound df
tCdf( , ,
upBound list
are numbers,
Computes the Student-t distribution probability between lowBound
and upBound for the specified degrees of freedom df.
{ upBound), set lowBound =
For P(X

Text

promptString DispFlag
Text [,
Programming command: Pauses the program and displays the
character string promptString in a dialog box.
When the user selects , program execution continues.
OK
The optional flag argument can be any expression.
If DispFlag is omitted or evaluates to
•
added to the Calculator history.
If DispFlag evaluates to
•
history.
If the program needs a typed response from the user, refer to
Request, page 83, or RequestStr, page 84.
Note: You can use this command within a user-defined program but
not within a function.

Then

tInterval

List Freq CLevel
tInterval [, [,
(Data list input)
v sx n CLevel
]
[,
tInterval , ,
(Summary stats input)
Computes a t confidence interval. A summary of results is stored in
the stat.results variable. (See page 97.)
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
stat.
stat.ME
stat.df
s
stat. x
⇒
number lowBound
) if
lowBound upBound
if and
.
9 999.
E
]
, the text message is
1
, the text message is not added to the
0
]]
Description
Confidence interval for an unknown population mean
Sample mean of the data sequence from the normal random distribution
Margin of error
Degrees of freedom
Sample standard deviation
and
are lists
Define a program that pauses to display each of five random
numbers in a dialog box.
Within the Prgm...EndPrgm template, complete each line by
@
pressing instead of
hold down and press
Alt
Define text_demo()=Prgm
For i,1,5
strinfo:="Random number " & string(rand(i))
Text strinfo
Next
EndPrgm
Run the program:
text_demo()
Sample of one dialog box:
TI-Nspire™ Reference Guide
Catalog >
Catalog >
·
. On the computer keyboard,
.
Enter
See If, page 45.
Catalog >
103