A manufacturing company makes bushings (it doesn't matter if you don't know what a bushing is!). This company typically makes 15,000 bushings each day. To monitor the quality of the bushings that they are producing on a certain day, the company randomly samples 500 bushings that were produced that day. Each bushing is tested and determined to be either GOOD or DEFECTIVE. The results of the sample of 500 bushings are that 28 are DEFECTIVE (5.6% are DEFECTIVE). Answer the following questions. (NOTE: Where appropriate round to one decimal place.)

a. What are the individuals?

b. Is this research an example of an experiment or an observational study?

c. What is the variable?

d. What is the sample size?

e. What is the population?

f. What is the Margin of Error?

g. Make a 95% confidence statement to clearly and completely state the conclusion that should be drawn from this research.