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

Responses

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

retesting 100 light bulbs that have already been tested
retesting 100 light bulbs that have already been tested

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

testing the last 4,000 bulbs in the production line

Answer 1

testing every fiftieth light bulb in the production line

Answer 2

you sure?