To reduce production interruptions for the robotic painting line, due to break downs, the plant manager would like to institute a preventative maintenance program. This initiative would require support from the upper management. So, he has collected data on hours of total down time per month and the line's productivity. He believes he can use regression for this analysis. Conduct the analysis at a 5% level of significance. Use the file DOWNTIME.xls for your analysis. Fill in the table below:

(PLEASE REMEMBER: this is a practice exam and I have created these to be "automatically graded" so you get a feedback. In the ACTUAL EXAM all fill-in-the-blanks and short answer questions will be manually graded, so you don't need to worryif youare entering the right words,numberof decimals, etc.)

What is the correlation?
How much of productivity is explained by downtime?
For 8 hours of downtime, what is the point estimated for productivity?