After a number of complaints about its tech assistance, a computer manufacturer examined samples of calls to determine the frequency of wrong advice given to callers. Each sample consisted of 100 calls. Number of errors 1 23 5 3 35 4 47 7 54 SAMPLE 7 8 9 10 11 12 13 14 15 16 6 8 4 5 9 3 4 5 6 6 7 66 Click here for the Excel Data File a. Determine 95 percent limits. (Do not round your intermediate calculations. Round your final answers to 2 decimal places. Round up any negative control limit value to zero.) UCL LCL b. Is the tech assistance process stable (i.e., in control)? O The process is in control.