I must calculate probability of F-ratio to compare signifiance (P<0.05). A large F-ratio signifies a "small probability" (lit ex. for F-ratio=0.933 calculated probability it is 0.434, df=3). How I can calculate this probability of F-ratio? It is tabulated? The formula it is preferabe. Thx.
2006-12-30 17:23:26 · 2 answers · asked by raluca_jimmy 1 in Science & Mathematics ➔ Mathematics
You can do this in a spreadsheet. Enter the data, highlight it and choose the function. It will list the results for you.
2006-12-30 17:27:35 · answer #1 · answered by Barks-at-Parrots 4 · 0⤊ 0⤋
The values for the F test are tabulated in the back on most statistics books. You'll need two df values.
The F test is appropriate when testing the ration of two Chi-squared variables. As you recall, a chi square comes from the sum of squared normals.
2006-12-31 10:26:38 · answer #2 · answered by modulo_function 7 · 0⤊ 0⤋