94
Chapter 8: Application Examples
Program code
Key operations
STAT
x
i I e
Data 102
i K
102
e
Data 95
i K
95
e
Data 107
i K
107
e
Data 93
i K
93
e
Data 110
i K
110
e
Data 98
i K
98
e
Print”MEAN
i 1 @ a
MEAN
;
e
Input M
i 2 ;
M
e
T=(˛-M)©‰(s
x
Œ©˜)
;
T
; = (
I
5
1 - ;
M
)
z
@
* (
I
5 2
A
z
I
5 0 ) e
Print T
i 0 ;
T
e
End
i 5
e
Running the program
4.
Press
j
to return to the PROG mode menu.
5.
Press
0
, select the program ‘TTEST’ and press
e
.
6.
Enter the expected mean value ‘100’ and press
e
.
Result
The t-test value of 0.303 is smaller than the 2.571, expected mean value
obtained from a t-test distribution table (at 5% of risk rate), showing that
they sell honestly.
T=
0.303058133
Summary of Contents for EL-5230
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