Casio CFX9850GBPLUS User Manual page 321

t
u 1-Sample
Test
This test uses the hypothesis test for a single unknown population mean when the population
standard deviation is unknown. The 1-Sample
o – o –
t = t =
x x
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 specifi cation.
Data .............................. data type
.................................. population mean value test conditions ("G
................................. 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 specifi cation items that are different
from list data specifi cation.
¯ x
.................................. mean of sample
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
t
0 0
n–1 n–1
n n
tail test, "< " specifi es lower one-tail test, ">
0
upper one-tail test.)
20070201
t
Test is applied to -distribution.
¯ x
: mean of sample
: assumed population mean
0
x
: sample standard deviation
n
-1
n
: size of sample
x
> 0)
n
-1
" specifi es two-
0
" specifi es
0