Acredit card company receives numerous phone calls throughout the day from customers reporting fraud and billing disputes. most of these callers are put "on hold" until a company operator is free to them. the company has determined that the length of time a caller is on hold is normally distributed with a mean of 2.5 minutes and a standard deviation 0.5 minutes. if 1.5% of the callers are put on hold for longer than x minutes, what is the value of x? use excel, and round your answer to two decimal places.