Question

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

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

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

testing the last 4,000 bulbs in the production line

Answer 1

testing every fiftieth light bulb in the production line

Answer 2

how is that logical?

Answer 3

Testing every fiftieth light bulb in the production line is likely to lead to a valid inference because it ensures a systematic and random sampling of the light bulbs. This method helps to avoid any biased selection of light bulbs and ensures that a representative sample is tested. This increases the likelihood of obtaining accurate information about the percentage of defective light bulbs in the production line.

Answer 4

oh yeah now i understand. THX bro.

Answer 5

You're welcome! If you have any more questions, feel free to ask.