Steps |
Key Sequence |
Screens |
1. Enter data into list, L1 |
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2. Enter data into list, L2 |
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3. Set up Stats Tests |
STAT |
![](GIFs/ci1.jpg) |
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twice |
![](GIFs/ci2.jpg) |
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0 (for 2–SampTInt...) |
![](GIFs/2stci1.jpg) |
4. Select Data |
use left arrow key (if necessary) to move cursor to Data, then ENTER |
![](GIFs/2stcid1.jpg) |
5. Select list, L1 |
(press ALPHA), then 2nd, then 1, then ENTER |
![](GIFs/2stcid2.jpg) |
6. Select list, L2 |
(press ALPHA), then 2nd, then 2, then ENTER |
![](GIFs/2stcid3.jpg) |
7. Input confidence level |
twice, enter confidence level (AS DECIMAL), then ENTER |
![](GIFs/2stcid4.jpg) |
8. Enter no for Pooled |
use left arrow key (if necessary) to move cursor to No, then ENTER |
![](GIFs/2stcid5.jpg) |
9. Calculate CI |
once, ENTER |
![](GIFs/2stcid6.jpg) |
10. Scroll down to find more calculations |
Press ![](GIFs/dArrow.jpg) |
![](GIFs/2stcid7.jpg) |
In this case the 90% CI is 3.9676 to 9.1157. |