[The following information applies to the questions displayed below] Find a Doctor, or FaD. is a small startup that helps people find a physiclan that best meets their needs (location, insurance accepted, etc.). Durlng a "slow" time for them, they have 7 staff members taking calls from customers. On average, one call arrlves every 6 minutes (with a standard devlation of 6 ). Each staff member spends 20 minutes with each customer (on average, with a standard deviatlon of 30%. tow long (In minutes) does a customer spend on average walting on hold before they can start speaking to a representative from aD? (Round the answer to 2 decimal places.)