Final answer:
To control against excessive quantities of raw material, a firm can implement quality controls and reduce employee supervision. Ignoring production variance is not an effective solution.
Step-by-step explanation:
In order to control against excessive quantities of raw material being used in the manufacturing process, a firm can implement quality controls. Quality controls ensure that the raw materials meet the required standards and are used efficiently, preventing wastage. By conducting thorough inspections and implementing quality assurance measures, firms can ensure that only the necessary quantities of raw material are used.
Another way to control against excessive quantities of raw material is by reducing employee supervision. When employees are closely supervised, there is less room for errors and misuse of raw materials. By allowing employees to have more autonomy and responsibility, firms can encourage them to use raw materials efficiently and avoid excessive usage.
The final option, ignoring production variance, is not an effective way to control against excessive quantities of raw material. Production variance refers to the deviation from the standard production process, and ignoring it can lead to inefficiency and wastage of raw materials.