HP 12C#ABA hp 12c_solutions handbook_English_E.pdf - Page 113
Keystrokes, Display, Registers, Within 11.07
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15 20 2.95 0 23 20 3.40 0 24 20 4.20 0 16 20 5.00 X2 0 The number of degrees of freedom is (n-1). Since n = 6, the degrees of freedom = 5. Consulting statistical tables, you look up x2 to a 0.05 significance level with 5 degrees of freedom, and see that x20.05,5 = 11.07. Since x2 = 5 is 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 DISPLAY CLEAR 0 0 00 n: Unused PV: Unused FV: Unused R1-R.9: Unused 00- 01- 44 0 02- 30 03- 36 04- 20 05- 45 0 06- 10 07- 40 08-43, 33 00 REGISTERS i: Unused PMT: Unused R0: Ei 112
112
The number of degrees of freedom is (
n
-1). Since
n
= 6, the degrees of
freedom = 5.
Consulting statistical tables, you look up
x
2
to a 0.05 significance level
with 5 degrees of freedom, and see that
x
2
0.05,5
= 11.07. Since
x
2
= 5 is
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.
15
20
0
2.95
23
20
0
3.40
24
20
4.20
0
16
20
0
5.00
X
2
KEYSTROKES
DISPLAY
CLEAR
00-
0
01-
44
0
02-
30
03-
36
04-
20
0
05-
45
0
06-
10
07-
40
00
08-43, 33 00
REGISTERS
n: Unused
i:
Unused
PV: Unused
PMT: Unused
FV: Unused
R
0
:
E
i
R
1
-R
.9
: Unused