Texas Instruments TI-84 Plus Manual Book page 622

Function or
Instruction/Arguments
ZPrevious
ZSquare
ZStandard
m s
Z-Test( [,listname,
0,
freqlist,alternative,
drawflag])
(Data list input)
Appendix A: Functions and Instructions
Result
Replots the graph using the
window variables of the
graph that was displayed
before you executed the
last ZOOM instruction.
Adjusts the X or Y window
settings so that each pixel
represents an equal width
and height in the
coordinate system, and
updates the viewing
window.
Replots the functions
immediately, updating the
window variables to the
default values.
Performs a z test with
frequency freqlist.
L
1 is <;
alternative=
ƒ
alternative=0 is ;
alternative=1 is >.
drawflag=1 draws results;
drawflag=0 calculates
results.
Key or
Keys/Menu or
Screen/Item
q
†
MEMORY
1:ZPrevious
q
†
ZOOM
5:ZSquare
q
†
ZOOM
6:ZStandard
...
†
TESTS
1:Z-Test(
619