A quality control manager wants to determine the percentage of defected lightbulbs in the production line, which of the following sampling method would most likely lead to a valid inference stating 100 lightbulbs that have already been tested restating the first 2000 lightbulbs in the production line testing every fifth lightbulb in the production line testing the last 4000 bulbs in the production line
Testing every fifth lightbulb in the production line. This method ensures that a representative sample of the lightbulbs is tested without bias towards certain areas of the production line. Testing random lightbulbs or specific sections can lead to erroneous results.
