A quality control manager wants to determine the percentage of defective light bulbs in the production line. Which of the following sampling methods would most likely lead to a valid inference?(1 point)

Question

A quality control manager wants to determine the percentage of defective light bulbs in the production line. Which of the following sampling methods would most likely lead to a valid inference?(1 point)

Responses

testing the last 4,000 bulbs in the production line

testing every fiftieth light bulb in the production line

testing the first 2,000 light bulbs in the production line

retesting 100 light bulbs that have already been tested

Answer 1

Testing every fiftieth light bulb in the production line would most likely lead to a valid inference, as this method ensures a representative and random sample of the entire production line.