I'm not sure what the question is. It looks like some of it may have been cut off or there is information missing?
Answer:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
Step-by-step explanation:
For a confidence level given c, we can find the significance level like this:

And with the degrees of freedom given by:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
After, thorough research I believe that there are 265 pine trees and 0 elm trees since decidous and semi-decidous do not grow near conifers.
F(-1)=2
F(2)=-1
F(3)=-3
The f(x) part is the input and the stuff after is the output