Appendix A: Functions and Instructions 598
2-PropZTest(x1,n1,x2,n2
[,alternative,drawflag])Computes a two-proportion
z test. alternative=L1 is <;
alternative=0 is ƒ;
alternative=1 is >.
drawflag=1 draws results;
drawflag=0 calculates
results.
† …
TESTS
6:2-PropZTest(
Pt-Change(x,y)Reverses a point at (x,y). y <
POINTS
3:Pt-Change(
Pt-Off(x,y[,mark])Erases a point at (x,y) using
mark.y <
POINTS
2:Pt-Off(
Pt-On(x,y[,mark])Draws a point at (x,y) using
mark.y <
POINTS
1:Pt-On(
PwrReg [Xlistname,
Ylistname,freqlist,
regequ]
Fits a power regression
model to Xlistname and
Ylistname with frequency
freqlist, and stores the
regression equation to
regequ.
…
CALC
A:PwrReg
Pxl-Change(row,column)Reverses pixel at
(row,column); 0 row 62
and 0 column94.
y <
POINTS
6:Pxl-Change(
F
unction or
Instruction/Arguments
Result Key or
Keys/Menu or
Screen/Item