Identify all the statements below regarding control charts that are False: For a process to be stable over time, the process capability must be greater than 1.0 The average sample standard deviation (s-bar) is an unbiased estimate of the population standard deviation. The I-MR chart is the only control chart that can be used with non-normal data. The primary benefit of a control is to help you identify when your process is being influenced by special causes of variation. Identify all the statements below regarding control charts that are False: The primary objective of SPC is to remove all defective units from a production lot prior to shipment to the customer. Having data outside the control limits is the only criteria to confirm that a process is out of statistical control. The X-bar and R chart should be used for variable data whose sample size is between 29. A defective unit can have multiple defects