Final answer:
The question pertains to the manufacturing process of rubber balls, focusing on weight tolerances and quality control. Appropriate tools would include a balance or a scale to measure the weight.
Step-by-step explanation:
The student is asking about a manufacturing process and its tolerance levels for producing rubber balls, with a specific focus on their weight variation. In this case, Leah's Toys can produce balls averaging 6.7 ounces, with a tolerance of +/- 0.5 ounces. To measure this accurately, a balance or a scale would be the appropriate tools, as suggested by LibreTexts. It is important to note the distinction between weight and mass, where 1 ounce of weight is the effect of 28.35 grams of mass on Earth.
The information provided about golf balls meeting the USGA standards may serve as a basic comparison in manufacturing standards, although it is less directly related to the student's question. The overall goal is understanding the manufacturing process capability and ensuring quality control.