The following data represent the monthly phone use, in minutes, of a customer enrolled in a fraud prevention program for the past 20 months. The phone 530 496 331 467 0 company decides to use the upper fence as the cutoff point for the number of minutes at which the customer should be contacted. What is the cutoff point? 548 346 511 377 411 360 372 474 415 339 343 333 441 353 477 510 The cutoff point is |minutes. (Round to the nearest minute.)