Texas Instruments TI-82 STATS - Page 376

A–20 Tables and Reference Information
826DEC~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 2:20 PM Printed: 10/27/05 3:09
PM Page 20 of 58
Function or Instruction/
A
rguments Result
Key or Keys/
Menu or Screen/Item
1.PropZInt(
x
,n
[
,confidence level])
Com
p
utes a one-
p
ro
p
ortio
n
z
confidence interval.
†
…
TESTS
A:1.PropZInt( 13-20
2.PropZInt(
x
1,n1,
x
2,n2
[
,confidence level])
Com
p
utes a two-
p
ro
p
ortio
n
z
confidence interval.
†
…
TESTS
B:2.PropZInt( 13-21
1.PropZTest(
p
0,
x
,n
[
,alternative,drawflag])
Com
p
utes a one-
p
ro
p
ortion
z
test.
alternativ
e
=L1 is <; alternativ
e
=0
is ƒ; alternativ
e
=1 is >.
draw
f
la
g
=1 draws results;
drawflag=
0 calculates results.
†
…
TESTS
5:1.PropZTest(
13-14
2.PropZTest(
x
1,n1,
x
2,n2
[
,alternative,drawflag])
Com
p
utes a two-
p
ro
p
ortion
z
test.
alternativ
e
=L1 is <; alternativ
e
=0
is ƒ; alternativ
e
=1 is >.
draw
f
la
g
=1 draws results;
drawflag=
0 calculates results.
†
…
TESTS
6:2.PropZTest(
13-15
Pt.Change(x,y) Reverses a point at (x,y). y [DRAW]
POINTS
3:Pt.Change(
8-15
Pt.Off(x,y[,mark]) Erases a point at (x,y) using mark. y [DRAW]
POINTS
2:Pt.Off(
8-15
Pt.On(x,y[,mark]) Draws a point at (x,y) using mark. y [DRAW]
POINTS
1:Pt.On(
8-14
PwrReg [Xlistname,
Ylistname,
f
re
q
lis
t
,
regequ]
Fits a
p
ower re
g
ression model to
X
listname and Ylistname with
fre
q
uenc
y
f
re
q
lis
t
, and stores the
regression equation to regequ.
…
CALC
A:PwrReg
12-27
Table of Functions and Instructions (continued)