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ANOVA statistical analysis for the response surface linear model of the % of negative answers to the question “Did you know that bioplastics can be made from leftovers of bakery and confectionery products (e.g., bread, cakes …)?” in the function of the education of questionees.
| Model | β1 | β2 | β3 | Β4 | R2 | Adjusted R2 | |
|---|---|---|---|---|---|---|---|
| Coefficient | 221.98 | −2049.61 | 129.74 | 22.03 | 0.999 | 0.995 | |
| F value | 2472.61 | 995.72 | 6238.98 | 1240.82 | 242.18 | ||
| p-value | 0.015 | 0.020 | 0.008 | 0.018 | 0.041 |
