One of New English Air’s top competitive priorities is on-time arrivals. Quality VP Clair Bond decided to personally monitor New England Air’s performance. Each week for the past 30 weeks, Bond checked a random sample of 100 flight arrivals for on-time performance. The table in the companion Excel file named “Flight_TQM.xlsx.” in BB contains the number of flights that did not meet New England Air’s definition of “on time.”
a. Construct a P Chart of the percentage of late flights
b. Do all samples fall within the control limits?