Sharp EL-5230 Operation Manual page 96

Chapter 8: Application Examples
Program code
STATx
Data 102
Data 95
Data 107
Data 93
Data 110
Data 98
Print"MEAN
Input M
T=(˛-M)©‰(sxŒ©˜)
Print T
End
Running the program
Press j to return to the PROG mode menu.
4.
Press 0, select the program 'TTEST' and press e.
5.
Enter the expected mean value '100' and press e.
6.
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.
94
Key operations
i I e
i K 102 e
i K 95 e
i K 107 e
i K 93 e
i K 110 e
i K 98 e
i 1 @ a MEAN ; e
i 2 ; M e
; T ; = ( I 5
1 - ; M ) z @
* ( I 5 2 A z
I 5 0 ) e
i 0 ; T e
i 5 e
T=
0.303058133