HP Prime Graphing Calculator - Manual (Page 371)

Functions and commands 367
ConfZ1prop The ConfZ1prop calculates the confidence interval for a one-
proportion Z-test.
ConfZ1prop(SuccCount, SampSize,
ConfLevel, ["configuration"])
ConfZ2prop The ConfZ1mean calculates the confidence interval for a two-
proportion Z-test.
ConfZ2prop(SuccCount1, SuccCount2,
SampSize1, SampSize2,ConfLevel)
ConfT1mean The ConfT1mean calculates the confidence interval for a one-
sample T-test.
ConfT1mean(SampMean, SampStdDev,
SampSize, ConfLevel)
ConfT2mean The ConfT2mean calculates the confidence interval for a two-
sample T-test.
ConfT2mean(SampMean, SampMean2,
SampStdDev, SampStdDev2, SampSize,
SampSize2, pooled, ConfLevel])
Finance app functions
The Finance App uses a set of functions that all reference the
same set of Finance app variables. There are 5 main TVM
variables, 4 of which are mandatory for each of these
functions (except DoFinance). There are 3 other variables
that are optional and have default values. These variables
occur as arguments to the Finance app functions in the
following set order:
– NbPmt—the number of payments
– IPYR—the annual interest rate
– PV—the present value of the investment or loan
– PMTV—the payment value
– FV—the future value of the investment or loan
– PPYR—the number of payments per year (12 by
default)