A company that manufactures computer chips wants to use a multiple regression model to study the effect that the variables x = daily production volume (in 1000's of units) x, = daily amount of time involved in production (in hours) have on y= total daily production cost (in 1000's of dollars). If a regression model is estimated using 185 observations on each of these variables, what are the degrees of freedom (df) for the regression sum of squares, error sum of squares, and the total sum of squares? of for the regression sum of squares of for the error sum of squares df for the total sum of squares