A quality control inspector checked a random sample of 120 light bulbs from a production batch. The inspector found that 18 of these light bulbs were defective. If the entire production batch contains 3,000 light bulbs, which of the following is the most appropriate conclusion?
Exactly 360 light bulbs in the batch are defective.
The best estimate for the number of defective light bulbs in the batch is 360.
Exactly 450 light bulbs in the batch are defective.
The best estimate for the number of defective light bulbs in the batch is 450.
