A researcher has observed 50 automatic teller machine (ATM) users outside the gift shop of a museum, and the data are in file XR17028. With y = amount withdrawn (dollars), x1 = time required for the transaction (seconds), and x2 = gender (1 = female, 0 = male), determine the linear regression equation for estimating the withdrawal amount as a function of the two predictor variables and interpret the partial regression coefficients. According to the equation, how much difference does gender tend to make in the amount withdrawn?