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 the last 4,000 bulbs in the production line

testing every fiftieth light bulb in the production line
testing every fiftieth light bulb in the production line

testing the first 2,000 light bulbs 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

[AI-generated answer — Bot GPT 3.5]

Testing every fiftieth light bulb in the production line would most likely lead to a valid inference as it provides a random and representative sample of the entire production line without bias towards the beginning or end.