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The University Health Network (UHN) has grown out of a series of mergers between Toronto hospitals, and has adjusted and change to accommodate the growing and changing patient community in and around the Greater Toronto Area (GTA). UHN monitors and evaluates healthcare Month Surgeries |Infections providers according to strict standards and 208 guidelines. Improvement in the quality of care is 2 225 3 a principal concern. Hospitals are required to 3 201 3 identify and monitor important quality indicators 4 236 that affect patient care and establish "thresholds 5 220 for evaluation" (TFEs), which are levels at which 6 244 special investigation of problems should occur. 7 247 TFEs provide a means of focusing attention on 8 245 non-random errors (that is, special cause of 9 250 variation). A logical way to set THEs is through 10 227 11 234 control charts. 12 227 Suppose that UHN collects monthly data on the 13 213 number of infections after surgery This data is 14 212 provided in the attached spreadsheet. Hospital 15 administrators are concerned about whether the 16 182 high percentages of infections (such as 1.76% 17 240 230 in month 12) are caused by factors other than 18 19 187 randomness.| 20 252 1. Using the data provided what is the 21 201 average percentage of infections? 22 226 23 222 2. Do the following 24 212 25 219 Construct the most appropriate 26 223 control chart to use for this data, 27 191 28 222 2 Compute the upper and lower 29 231 control limits, 30 239 31 217 Plot the data on a control chart, and 32 241 33 220 Determine if the process is in 278 statistical control 135 255 36 225 3. Based on your analysis, what action, if