Problem #3 Suppose the same medical director from the first two problems wanted to look at 36 weeks instead of 20 weeks. His quality improvement team provided him with the data below after an "intervention" was introduced in week 20. Calculate the upper and lower control limits and then construct a control chart. Display your chart. Question: Using the rules for detecting special causes, can you detect any special causes in this case? If so, delays? what special causes can you detect? What does this mean? Was the intervention successful in reducing the Week Average Delay Time ( in days] 34 30 35 5 28 6 26 7 29 28 9 35 10 26 11 34 12 31 28 14 40 15 26 16 32 17 31 30 10 20 35 21 26 22 21 24 23 25 25 26 17 27 21 22 29 21 310 17 31 23 22 24 34 19 35 20 316 21