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Chapter 8: Application Examples
Program code Key operations
STATx 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)©‰(sxŒ©˜) ; 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