180
CHAPTER 7
for US
[02 Ftest2samp]
Two sample data collected from two different populations are tested for population
standard deviation
σ
1
and
σ
2
.
<Example 2>
To test population standard deviation
σ
1
<
σ
2
for the two sample data, n
1
= 20, standard
deviation sx
1
= 5.6 and n
2
= 50, standard deviation sx
2
= 6.2, follow the next steps.
• 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.
1. Press
E
1
7
®
to set the unit to the numerical value input mode.
2. Press
E
0
2
to display the parameter input screen.
3. Press
>
®
≥
to highlight (select) “
σ
1
<
σ
2
”.
(In the default setting, the cursor pointer will appear at “
σ
1
≠
σ
2
”.)
4. 5.6
®
20
®
6.2
®
50
®
5. Press
Ï
to solve.
*
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 “
σ
”,
from one sample data of a collected population, is unknown.
EL-9650-(07)En (178-196)
8/1/00, 9:08 AM
180
Summary of Contents for EL-9650
Page 10: ...viii ...
Page 46: ...36 CHAPTER 1 ...
Page 230: ...220 CHAPTER 9 ...
Page 268: ...258 CHAPTER 12 ...
Page 349: ...339 APPENDIX When coordinate system is Rect param or polar ...
Page 350: ...340 APPENDIX When coordinate system is Seq F STYLE2 E STYLE1 ...
Page 352: ...342 APPENDIX ...
Page 353: ...343 APPENDIX on Program screen ...
Page 354: ...344 APPENDIX ...
Page 355: ...345 APPENDIX ...
Page 356: ...346 APPENDIX ...
Page 357: ...347 APPENDIX ...
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