statistics, mesurement

[MalteMan]

Hey

 

I got this task that is killing me....

I got 2 different kinds of measurements:

 

1. photogrammetretric mesurement:

standard deviation of 4.7cm and 36 degrees of freedom.

 

2. two measurements of total station:

standard deviation of 6.1cm and 71 degrees of freedom.

and the second mesurement

standard deviation of 4.7cm and 69 degrees of freedom.

 

Now the question is: Is it likely to say that the photogrametric method is better than the total station?

 

I know that i have to use a f-distubution, but my problem is i can't figure out how to compute the two measurements of the total station?

 

I am using matlab, to do the calculations and the f-distubution..

 

anyone who can help me?