A researcher is interested in the relationship between job flexibility and work performance. She recruits a large manufacturing company to help her obtain data and identifies 10 employees who work from home without a set schedule and 10 who work at the company headquarters following a typical 8am-5pm work-day schedule. She asks each person's boss and coworkers to rater their performance using a 1-5 scale with enpoints of 1 (poor performer) and 5 (excellent performer) and finds that the employees who work from home receive higher average performance ratings. 1. What is the independent variable in this study? N What is the dependent variable in this study? 3. What is her total Sample Size 4. How could she potentially reduce sampling error? 5. Is this an experiment or observational study? 6. What are her hypotheses