4. FILE The production department of Celltronics International wants to explore the relationship between the number of employees who assemble a subassembly and the number produced. As an experiment, two employees were assigned to assemble the subassemblies. They produced 15 during a 1-hour period. Then four employees assembled them. They produced 25 during a 1-hour period. The complete set of paired observations follows: Number of Assemblers One-Hour Production (units) 15 25 10 40 30 The dependent variable is production; that is, it is assumed that different levels of production result from a different number of employees. a. Draw a scatter diagram. b. Based on the scatter diagram, does there appear to be any relationship between the number of assemblers and production? Explain