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 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 minutes The cutoff point is Round to the nearest minute 536 451 331 480 356 324 500 527 349 409 457 414 440 503 543 484 349 528 446 331