Question

the sales strategy data given below yields the following statistics for the sum of squares for treatments and the sum of squares for error. sales by strategy (millions of dollars) strategy 1 strategy 2 strategy 3 strategy 4 strategy 5 4 13 4 9 3 8 2 2 4 6 9 12 10 6 5 10 15 5 9 5 12 2 10 7 3 11 6 6 14 8 15 7 4 5 3 12 6 7 9 7 9 9 12 7 5 copy data sst ≈ 121.6889 sse ≈ 433.5556 step 1 of 4: what are the degrees of freedom associated with the total sum of squares, tss? answer

Explanation:

Step1: Determine number of observations

There are 9 rows and 5 columns, so the total number of observations $n=9\times5 = 45$.

Step2: Recall formula for degrees of freedom of total sum of squares

The degrees of freedom for the total sum of squares $df_{TSS}=n - 1$.

Step3: Calculate degrees of freedom

Substitute $n = 45$ into the formula: $df_{TSS}=45- 1=44$.

Answer:

44