Finding the p value

#1
I am taking a statistics class, and i have some problems Understanding a formula.

The formula in question is like this:

p-value=2P(T>|t_obs,beta_i|)

I have calculated the t_obs,beta_i, but i do not understand what i am supposed to do in this next step. specifically, i have no idea what P is, and i suspect (T>|t_obs,beta_i|) should be a binary value? like 1 or 0?
 

hlsmith

Less is more. Stay pure. Stay poor.
#2
Can you add any more content, such as the statistical test you are performing or a screenshot of the actual problem?
 

hlsmith

Less is more. Stay pure. Stay poor.
#5
Well it seems like you may be doing a two-sided t-test based on a regression coefficient. The 2P, is the multiplication of the p-value you had looked up on the t-distribution, times 2, since it is a two-sided hypothesis, meaning it could be different by being significantly more or less, no directionality in the difference just that it is different from the null.
 

hlsmith

Less is more. Stay pure. Stay poor.
#10
Well that value can get converted into a p-value if you know your degrees of freedom. I believe it is usually n-1.
 

hlsmith

Less is more. Stay pure. Stay poor.
#12
Well you are lucking out, I am waiting to see if someone replies to my post, so I am in the cyber-neighborhood.


Look at this wonderful page I found just for you bok11:


http://www.cyclismo.org/tutorial/R/pValues.html


I didn't punch all of your numbers in but I quickly got the following based on your t-statistic:


5.565753e-11

Are you following all of your above steps and understanding what all of the values mean?
 

hlsmith

Less is more. Stay pure. Stay poor.
#13
Sorry I got sloppy above and didn't insert all of the numbers. I believe it should be this:


2*pt(-abs(-9557.107),df=573)


Which you may need to force to show you more digits if desired or otherwise it is, p<0.0001.


With experience you will recognize that 9557 is a big number.