Builtrite Furniture has calculated the average weekly payroll to be $18,000 with a standard deviation of $4,000. The Tempe store manager will get into trouble if he allows wages to get too high. For the manager to get into trouble, wages need to exceed the top 20%. What is the minimum dollar amount of wages that can be paid for the week that will get the manager into trouble? (Assume a normal distribution.) $18,990 $19,680 $20,080$21,360