Since we would expect patrons of the gourmet restaurant to have higher incomes, on average, than patrons of the diner, if high$-$quality service is $($Click to select$)$ good, then patrons of the gourmet restaurant will have a higher willingness to pay for high$-$quality service than will patrons of the diner. In addition, since people typically leave tips that are $15$ to $20$ percent of the price of their meal, patrons of the gourmet restaurant actually will pay $($Click to select$)$ for service than will patrons of the diner.