Casio fx-9860G AU User Manual page 321

u u u u u 1-Sample t Test
This test uses the hypothesis test for a single unknown population mean when the popula-
tion standard deviation is unknown. The 1-Sample
µ
o –
t =
σ x
n–1
n
Perform the following key operations from the statistical data list.
3(TEST)
2(t)
1(1-S)
The following shows the meaning of each item in the case of list data specification.
Data ............................ data type
µ .................................. population mean value test conditions ("G µ
µ
................................. assumed population mean
0
List .............................. list whose contents you want to use as data (List 1 to 26)
Freq ............................. frequency (1 or List 1 to 26)
Save Res .................... list for storage of calculation results (None or List 1 to 26)
Execute ....................... executes a calculation or draws a graph
The following shows the meaning of parameter data specification items that are different
from list data specification.
o
.................................. mean of sample
σ
x
............................. sample standard deviation (
n
-1
n
.................................. size of sample (positive integer)
After setting all the parameters, use c to move the highlighting to "Execute" and then press
one of the function keys shown below to perform the calculation or draw the graph.
• 1(CALC) ... Performs the calculation.
• 6(DRAW) ... Draws the graph.
6-5-11
Tests
0
tail test, "< µ " specifies lower one-tail test, "> µ
0
upper one-tail test.)
20050401
t t
Test is applied to -distribution.
o
: mean of sample
µ
: assumed population mean
0
σ
x
: sample standard deviation
n -1
n
: size of sample
σ
x
> 0)
n
-1
" specifies two-
0
" specifies
0