Question

A company has been running an assembly line with 97.42% of the products made being acceptable. Then, a critical piece broke down. After the repairs, the decision was made to see if the number of defective products made was still close enough to the long-standing production quality. Samples of 500 pieces were selected at random, and the defective rate was found to be 0.025%.

What was the previous acceptable rate of products made?
a) 2.58%
b) 97.42%
c) 100%
d) 0.025%

Answer 1

The previous acceptable rate of products made was 100%. Since the defective rate remained the same, we can conclude that the previous acceptable rate of products made was 100% (option c).

Step-by-step explanation:

To determine the previous acceptable rate of products made, we need to compare the defective rate before and after the repairs.

the repairs, the assembly line had a defective rate of 0.025%.

After the repairs, a sample of 500 pieces was selected and the defective rate was found to be 0.025%.

Since the defective rate remained the same, we can conclude that the previous acceptable rate of products made was 100% (option c).