x
2
For a test or interval involving the dierence of two proportions, sets the number of successes of the second
sample. From the Numeric view, set the value of x
2
.
In a program, type:
n ▶ x
2
Xlist
Contains the list of explanatory data (X) for the regression tests and intervals. In Numeric view, enter your
data in
Xlist.
Xval
For the condence interval for the mean response and prediction interval for a future response, contains the
value of the explanatory variable (X) under scrutiny. Enter a value when prompted by the wizard.
Ylist
Contains the list of response data (Y) for the regression tests and intervals. In Numeric view, enter your data
in Ylist.
Finance app variables
The following variables are used by the Finance app. They correspond to the elds in the Finance app Numeric
view.
CPYR
Compounding periods per year. Sets the number of compounding periods per year for a cash ow calculation.
From the Numeric view of the Finance app, enter a value for C/YR.
In a program, type:
n ▶ CPYR
where n > 0
BEG
Determines whether interest is compounded at the beginning or end of the compounding period. From the
Numeric view of the Finance app, select or clear End.
In a program, type:
1 ▶ BEG—for compounding at the end of the period (default).
0 ▶ BEG—for compounding at the beginning of the period.
FV
Future value. Sets the future value of an investment. From the Numeric view of the Finance app, enter a value
for FV.
In a program, type:
n ▶ FV
Positive values represent return on an investment or loan.
630 Chapter 28 Programming in HP PPL
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