Memory
Required: 157 bytes: 109 for program, 48 for variables.
Remarks:
The accuracy of this program is dependent on the display
setting. For inputs in the range between
±3
standard deviations, a
display of four or more significant figures is adequate for most appli
cations. At full precision, the input limit becomes
±5
standard
deviations. Computation time is significantly less with a lower
num
ber of displayed digits.
In routine N, the constant 0.5 may be replaced by 2
and
|1/%|. This
will save 6.5 bytes at the expense of clarity.
You do
not
need to key in the inverse routine (in routines I
and
T) if
you are not interested in the inverse capability.
Program
Instructions:
1. Key in the program routines; press [c] when done.
2.
Press
fxEQl
S.
3. After the prompt for M, key in the population mean
and
press
IR/SI. (If the mean is zero, just press IR/s I.)
4. After the prompt for S, key in the population standard deviation
and press IR/SI. (If the standard deviation is 1, just press IR/SI.)
5. To calculate X given
Q(X),
skip to step 9 of these instructions.
6.
To
calculate
Q(X)
given X,
rxEQl
D.
7. After the prompt, key in the value of X
and
press IR/SI. The
result,
Q(X),
is displayed.
8.
To calculate Q(X)for a
new
X
with
the
same
mean
and
standard
deviation, press IR/s I
and
go to step 7.
9. To calculate X given
Q(X),
press
fxEQl
I.
10.
After the prompt, key in the value of
Q(X)
and press IR/SI. The
result, X, is displayed.
11.
To calculate X for a
new
Q(X)
with
the
same
mean
and
standard
deviation, press IR/SI
and
go to step 10.
218
13:
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