Calculates the Student T distribution cumulative distribution function for 1 tail.
Formula: 1-tdist(fcx,fcdf,1)
What is the 1 tail probability associated with a Student’s T distribution with 8 degrees of freedom with a t-value of 1.86?
Value | Keystrokes | Display | Description |
---|---|---|---|
8 | df | 8.00 | Stores the df value. |
1.86 | x | 1.86 | Stores the x value. |
tdist | 0.95 | Calculates the T distribution. |
A hypothesis test requires a critical t-value from the Student's T-Distribution with 25 degrees of freedom. Find the t-value for a 1 tail probability of 0.90
Value | Keystrokes | Display | Description |
---|---|---|---|
25 | df | 25.00 | Stores the df value. |
.90 | tdist | 0.90 | Stores the tdist. |
x | 1.316 | Calculates the x value. |
Reference:
Student's t-distribution - Wikipedia