HP 12c Solutions Handbook page 113

15 20
23 20
24 20
16 20
The number of degrees of freedom is (n-1). Since n = 6, the degrees of
freedom = 5.
Consulting statistical tables, you look up x
with 5 degrees of freedom, and see that x
within 11.07, we may conclude that to a 0.05 significance level (probability
= .95), the die is fair.
Try the following HP-12C program with the same example.
KEYSTROKES
CLEAR
0
0
n: Unused
PV: Unused
FV: Unused
R -R : Unused
1 .9
2.95
0
3.40
0
4.20
0
5.00
0
00
REGISTERS
2
X
2
to a 0.05 significance level
2
= 11.07. Since x
0.05,5
DISPLAY
00-
01- 44
02-
03-
04-
05- 45
06-
07-
08-43, 33
i: Unused
PMT: Unused
R : E
0 i
112
2
= 5 is
0
30
36
20
0
10
40
00