The center line for a stable P Chart for customer satisfaction is 0.872 (87.2%). The company wishes the satisfaction rate to be 90% or higher. The P chart shows 52 weeks of data with a sample size of 40 parts each week. The confidence interval for the true likelihood of a satisfied customer is calculated based on: A. pbar=0.872 N=2080 B. pbar=0.9 N=2080 C. pbar=0.872 N=52 D. pbar=0.9 N=40