Question $5(1$ point$)$

The co$-$owners of a diner decided to do something about the long lines that occurred every day in their place of business. After discussions with their employees, several important facts came to light. $1)$ Customers waited in line for up to $15$ minutes. $2)$ Tables were usually available. $3)$ Many of their customers were regulars. $4)$ People taking orders and preparing food were getting in each other's way. In which step of the Deming improvement cycle would one conduct a pilot study to test the impact of potential solutions?