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14: Additional Examples 221
File name : 17BII-Plus-Manual-E-PRINT-030709 Print data : 2003/7/11
Number 1 2 3 4 5 6
Frequency Observed 25 17 15 23 24 16
Keystroke: Display: Description:
$
!
" Displays SUM menu and
current list.
@c
W
or
p s
"
"
;:H0L#T8U"
Clears current list or gets a
new one.
25
I
17
I
15
I
23
I
24
I
16
I
"
"
"
"
"
;:H0L-T8U"
:E:198#$(&(("
Enters observed values.
e
o
OBS
I
"
;:H0L-T8U"
Names the list OBS.
e
&
(use
[
and
]
if necessary )
" Displays the CHI
equation. Make sure
name1
is OBS.
E
" Displays menu.
20
I
HX58$(&((" Stores expected value.
"
7M;"
"
7M;8.&(("
Calculates
χ
2
.
The number of degrees of freedom is (n－1)＝5. Consult statistical tables
to find
χ
2
to a significance level of 0.05 with 5 degrees of freedom. The
table shows that
2
0055
χ
.,
＝11.07. Since the computed value (5.00) is less
than 11.07, you can conclude that, to a 0.05 significance level (95%
probability), the die is fair.