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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4 (for 2–SampTTest...) |
![](GIFs/2stTestd1.jpg) |
4. Select Data |
use left arrow key (if necessary) to move cursor to Data, then ENTER |
![](GIFs/2stTestd1.jpg) |
5. Select list, L1 |
(press ALPHA), then 2nd, then 1, then ENTER |
![](GIFs/2stTestd2.jpg) |
6. Select list, L2 |
(press ALPHA), then 2nd, then 2, then ENTER |
![](GIFs/2stTestd3.jpg) |
7. Select test |
Press twice, then using arrow keys, select desired test, then ENTER |
![](GIFs/2stTestd4.jpg) |
8. Enter no for Pooled |
use left arrow key (if necessary) to move cursor to No, then ENTER |
![](GIFs/2stTestd4.jpg) |
9. Calculate P–value |
once, ENTER |
![](GIFs/2stTestd5.jpg) |
10. Scroll down to find more calculations |
Press ![](GIFs/dArrow.jpg) |
![](GIFs/2stTestd6.jpg) |
In this case, the test was Ha: μ1 < μ2;
the t statistic is 4.282; the p–value is 0.99994; the df is 39.06, etc. |