Using the F Table to Find Areas and Percentiles
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11 жыл бұрынI show how to find percentiles and areas for the F distribution using the F table. In the first part of the video I work through examples finding areas and percentiles in the right tail of the distribution. (These are often of more importance to us than the left tail values.) In the second part of the video I show the mathematical "trick" that allows us to find left tail values from a table that gives only right tail values, and work through examples.
@jbstatistics 10 жыл бұрын
Thanks Joe! You are very welcome.
@jbstatistics 11 жыл бұрын
The other type of F table has one tail area per page (for example, a = 0.10 on one page, a = 0.05 on another). That's not the format I prefer. For that type, you'd use the same logic, but you have to flip between the pages. I think the table format given here is better for a number of reasons, so it's the one I use.
@TOMIVIAJERO 8 жыл бұрын
can you help me to get the F value for a VECM of 45 observations and 3 variables... i think it should be a (3,42) ?... 2,82 ??
@JRxzzle9 11 жыл бұрын
Ok thanks, helpful video
@engamnaali 9 жыл бұрын
where can i have a table like yours ?
@anjalilakra15 11 жыл бұрын
which table is this ? i use devore tables
@JRxzzle9 11 жыл бұрын
why are most tables not like that? for example the first one in google how would i use this table?
@MnemoSemiotic 6 жыл бұрын
at :56, would this be the correct way in R to get the exact value for P(F>2.448): > df(2.448, df1=3, df2=14)
@jbstatistics 6 жыл бұрын
1-pf(2.448,3,14) would do it.
@MnemoSemiotic 6 жыл бұрын
awesome, thank you for the quick response, teaching myself R
@BlowMeBG 8 жыл бұрын
u made a mistake at 5:57 df=5 is denominator, not numerator. Right?
@dam1ans317 6 жыл бұрын
Nope u flipped for the property :)
@limchea5562 4 жыл бұрын
Sorry to say that the area we have worked out is less than .10 and greater than .025