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Inverse Of Student's T Probability Lower Tail - HP 10bII+ User Manual

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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 (df
), followed by
1
Example
A hypothesis test requires a critical t-value from the Student's T distribution with 26 degrees
of freedom. Find the t-value for a lower tail probability of .05.
Table 12-22 Example calculating the
Keys
GS]oI7:V4
Æ
:
or, using
GSÆ7:V]oI
Figure 15
132
Statistical Calculations
Æ
]oI
, then P. Press
Figure 14
t
-value (lower tail)
to calculate t.
Display
Description
- 1 .705618
Enter degrees of freedom
and the probability, and
calculates the lower tail
t- value.
Returns the same results.
Figure 16

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