Sharp EL-9650 Operation Manual page 190

CHAPTER 7
[02 Ftest2samp]
Two sample data collected from two different populations are tested for population
standard deviation
<Example 2>
To test population standard deviation
deviation sx = 5.6 and n
1
• Since we will use the numerical value input method of statistics values for this test,
we will first set the unit to the numerical value input mode.
E 1 7 ® to set the unit to the numerical value input mode.
1. Press
E 0 2 to display the parameter input screen.
2. Press
3. Press > ® ≥ to highlight (select) "
(In the default setting, the cursor pointer will appear at "
4. 5.6 ® 20 ® 6.2 ® 50 ®
5. Press Ï
* F indicates statistics and P indicates probability.
* No input is necessary when there is no weight list.
[03 Ttest1samp]
Tests the hypothesis of population mean µ when the population standard deviation " ",
from one sample data of a collected population, is unknown.
and .
1 2
= 50, standard deviation sx
2
to solve.
< for the two sample data, n
1 2
= 6.2, follow the next steps.
2
< ".
1 2
180
= 20, standard
1
".)
1 2