Inverse of Student’s t Probability Lower Tail
If you know the lower tail probability, P, and you want to calculate t, enter the degrees of freedom (df1), followed by Æ, then P. Press ]oIto calculate t.
Figure 14
Example
A hypothesis test requires a critical
Table | Example calculating the |
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| Display | Description |
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| GS]oI7:V4 |
| and the probability, and | |
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| Enter degrees of freedom |
| calculates the lower tail |
| t- value. |
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or, using Æ: |
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GSÆ7:V]oI | Returns the same results. |
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Figure 15 | Figure 16 |
132 Statistical Calculations