Given the following marketing report from a production firm, answer the following questions. Table 1a Regression Residual Total Confirmatory Specification with 13 Variables Multiple R Coefficient of Determination R Adjusted R Standard error of the estimate a) Is the model appropriate? Explain by interpreting R, Adjusted R and Standard error of the estimate. (6) Table 1b Analysis of Variance Sum of Squares 113.044 27.584 140.628 df .897 .804 .774 .566 b) Fill in blank spaces in Table 1b and interpret the results. Mean Square 13 ?? 86 99 .321 F ?? Sig. .000