You have collected the following data from customer comment cards at your restaurant. Construct a Pareto diagram to show which of the problems should be investigated first. Show the cumulative frequency line on your diagram. Comment Frequency Dirty dishes Dirty silverware Inattentive service Cold food Wrong order Overpriced Long wait Hours of Overtime 127 90 95 160 10 80 27 103 48 65 4. Use the following data to construct a scatter diagram. Does there appear to be a relationship between hours of overtime and number of rejects? Discuss. 3.7 3.3 3.1 3.5 3.3 2.7 3.0 18 98 2.3 September 2.5 October 2.2 23 November 1.6 December 1.7 5 35 4 Number of Rejects 33 25 23 5. Your boss has asked you to evaluate the reject percentage for the past year on one of the production lines. Use the following data to construct a run chart. Does there appear to be a pattern in the change in reject rate over the year? Month Reject % January February March April May June July August 40 9 19 14 28 19 31