These questions are NOT graded.
Let’s say you work as an analyst at a pharma company, which manufactures an antipyretic drug (tablet form) with paracetamol as the active ingredient. The amount of paracetamol specified by the drug regulatory authorities is 500 mg with a permissible error of 10%. Anything below 450 mg would be a quality issue for your company, as the drug will be ineffective, while any amount above 550 mg would lead to a serious regulatory issue.