estion 3. Control Charts for Variables A machine is used to fill cans with an energy drink. A single sample can is selected every hour, and the weight of the can is obtained. Since the filling process is automated, it has very stable variability, and long-term experience indicates that o = 0.05 oz. The individual observations for 24 hours of operation are shown in Table 3. * Use Excel to plot the control chart and insert it in the space provided below. Table 3 "I. Number x Number X \"_- \"_- -- \"1 1. Assuming that the process target is 8.02 oz, create a CUSUM chart for this process. Design the chart using the standardized values h= 4. 77 and k= 0.5. 0.10 marks for chart formatting; 0.50 Control Charts 2. Does the value of a = 0.05 seem reasonable for this process? Question 4. Control Charts for Attributes Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table 4. Set up a control chart for nonconformities using these data. Does the process of producing the plates appear to be in statistical control? Table 4 Plate Number of Plate Number of Number Nonconformities Number Nonconformities 1 * Use Excel to plot the control chart and insert it in the space provided below. estion 5. Control Charts for Attributes A process that produces titanium forgings for automobile turbocharger wheels is to be controlled through the use of a fraction nonconforming chart. Initially, one sample of size 150 is taken each day for 20 days, and the results shown in Table 5 are observed. Table 5 Nonconforming a Nonconforming Units * Use Excel to plot the control chart and insert it in the space provided below. 1. Establish a control chart to monitor future production. 2. What is the smallest sample size that could be used for this process and still give a positive lower control limit on the chart