Question

question 2 of 4, step 2 of 4
step 2 of 4: what are the degrees of freedom associated with the sum of squares for treatments, sst?
sst ≈ 13.1818
sse ≈ 812.5455

Explanation:

Step1: Recall degrees - of - freedom formula for SST

In one - way ANOVA, if there are $k$ groups, the degrees of freedom for the sum of squares for treatments (SST) is $df_{SST}=k - 1$.

Step2: Count the number of columns (groups)

Count the number of columns in the data table. There are 4 columns, so $k = 4$.

Step3: Calculate degrees of freedom

Using the formula $df_{SST}=k - 1$, substitute $k = 4$ into it: $df_{SST}=4 - 1=3$.

Answer:

3