Module 5 Homework: Statistical Process Control Answer the following questions fully. Show your work for partial credit. Upload a copy of you complete work to the homework Q1 in Blackboard. 1. Look at the following control chart and determine if it is: "In control" OR "In control, but trending toward out of control" OR "Out of control". (1 point) Explain you reasoning fully using the four criteria outlined in the course. ( 2 points) 2. Professor Mathien is advising students for the nest semester and wants to see how long the students are waiting outside her office. Over the course of a week, she logs the wait times for 4 different students per day (sample size). She does this for 30 days that month. Looking at all the data she collected, she finds that the overall average wait time (mean of means) is 10.4 minutes, with an overall average range of 0.9 minutes (meaning the students are waiting between 9.5 to 11.3 minutes, on average). Compute the following: (6 points) - X - upper and lower control limits for X chart (total of two values). Reminder: UCL and LCL for X=X+/(A2R) - upper and lower control limits for R chart (total of two values). Reminder: UCL for R=(D4R) and LCL for R=(D3R) Control Chart Factors can be looked up in the following table: 3. Professor Mathien is grading assignments and looking at the total number of errors, regardless of what the errors are (spelling, citations, etc.), over various semesters. She looks at 150 assignments each from 5 different semesters. After inspecting them, she find that 24% of the assignments have errors. Compute the following: ( 3 points) - Sp (estimate of the standard deviation). Reminder: Sp=p(1p) - upper and lower control limits for p chart (total of two values). Reminder: UCL and LCL=p+/(3Sp)