In an existing process, we have found that the upper controllimit for X-bar chart is 8.65. Whereas, the lower and upper control limits for R-chart are 0 to 2.25 respectively. The following measurements for one sample are taken:8.5,8.9, 8.28, and 8.7. Using both the X- bar chart and R-chart for this particular sample, what we can conclude about the overall process a. Process is in-control b. Insufficient information to conclude Perfect process d. Process is out-of-control. A university lecturer needs to allocate time next week to include time for office hours. He needs to forecast the number of students who will seek appointments. He has gathered the following data:Week #students 6 weeks ago 835 weeks ago 1004 weeks ago 953 weeks ago 802 weeks ago 65Last week 50What is this week's forecast using the nave approach? a 50 b. 45 78 d. 52 65 n Every hour a quality control inspector measures the outside diameter of five parts. If the average of the means is 5 and the average range is 1.6, what is the upper controllimit for the R-chart for this process? 4.12 b3.38 co d3.92 e 3.66