Equality 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 interference? The answers are testing every 5th light bulb in the production line testing the last 4000 bulbs in the production line? Testing the first 2000 light bulbs in the production line? Retesting 100 light bulds that have already been tested? Which one is the answer
Testing every 5th light bulb in the production line would most likely lead to a valid inference. This method ensures a random and representative sample of the overall production line, allowing for a more accurate estimation of the percentage of defective light bulbs. Testing the last 4000 bulbs, the first 2000 bulbs, or retesting already tested bulbs may introduce bias and not provide an accurate representation of the overall quality of the production line.
