A study,8 after pointing out that diets high in fats and sugars (bad for our health) are more affordable than diets high in fruit and vegetables (good for our health), reported, “Every extra 100 g of fats and sweets eaten decreased diet costs by 0.05 to 0.4 Euros, whereas every extra 100 g of fruit and vegetables eaten increased diet costs by 0.18 to 0.29 Euros.” Indicate the parameters to which these interpretations refer and the statistical inference that was performed to give this summary.