The output of a different regression analysis on the effect of radio advertising spending on sales is given below. For this study they only explored radio advertising expenditure. Regression Analysis:...

Extracted text: The output of a different regression analysis on the effect of radio advertising spending on sales is given below. For this study they only explored radio advertising expenditure. Regression Analysis: Sales versus Spend Analysis of Variance Source DF MS F-Value P-Value Regression dfreg 23991.2 MSR F-val p-val Error dferr 561.7 MSE Total 33 24552.9 How many degrees of freedom does the Error (SSE) have? It is denoted by dferr in the table above.