The production department of NDB Electronics 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 one-hour period. Then four employees assembled them. They produced 25 during a one-hour period. The complete set of paired observations follows.
Number of Assemblers : One-Hour Production (units)
2 : 15
4 : 25
1 : 10
5 : 40
3 : 30
The dependent variable is production; that is, it is assumed that the level of production depends upon the number of employees.
Draw a scatter diagram.
Based on the scatter diagram, does there appear to be any relationship between the number of assemblers and production? Explain.
Compute the coefficient of correlation.