# Thread: Need Help with calculating F critical value

1. ## Need Help with calculating F critical value

Hello all,

I have been working on this problem for 3 or 4 days and I am not sure what I am doing wrong when I am calculating F critical value.

Would someone please walk me through the problem?

Question:

Here is my data set.

BR 1
5, 9.5, 6, 7.3, 6.6, 7.9,
BR 2
8.2, 6.7, 6.9 , 7.2, 7.5, 8.6

BR 3
10, 7.5, 8.7, 8.4 , 7, 7.8

BR 4
7, 8.5, 6.7, 7.3, 7.2, 6.2
A
nd I am trying to calculate F Critical Value at 95% confidence.

These are all the calculations I have that are right.

What is the SUM of SQUARES (SS) for FACTOR? 5.1746
What is the SUM of SQUARES (SS) for ERROR? 23.6717
What is the SUM of SQUARES (SS) TOTAL? 28.8462
What is the Degrees of Freedom (Df) for FACTOR? 3.0000
What is the Degrees of Freedom (Df) for the ERROR term? 20.0000
What is the Degrees of Freedom (Df) TOTAL? 23.0000
What is the MEAN SQUARED (MS) for FACTOR? 1.7248
What is the MEAN SQUARED (MS) for the ERROR term? 1.1836
What is the F Calculated value? 1.5099

Thanks for the help.