Question 20 (1 point) The calculation (a + 4m + b) / 6 is used to find time. O optimistic expected DOC average pessimisticQuestion 6 (1 point) Which of the following is a difference between lean production and Six Sigma? O The lean production technique can be used in nonmanufacturing environments, whereas Six Sigma cannot be used in nonmanufacturing environments. O Lean production addresses less visible problems in processes, whereas Six Sigma is more concerned with visible problems. O Lean production is focused on effectiveness by reducing errors and defects, whereas Six Sigma is focused on efficiency by reducing waste and improving process flow. O Lean production tools are more intuitive and easier to apply by anybody in the workplace, whereas many Six Sigma tools require advanced training and expertise of specialists.Question 13 {1 point] The Project Evaluation and Review Technique (PERT) was developed as a means of scheduling and controlling projects with constant activity times. .1 _ 1: True I: 1: False Question 14 {1 point] Ernie]: ofthe following stages ofthe project life cycle entails the scheduling of activities?I I: j The dening stage I: II The planning stage I: J The organising stage I: j The controlling stage