11 An accountant at the firm Bragg and Bragg belived that several travelling executives were submitting usually high travel vouchers when they returned from business trips. First, she took a sample of 300 vouchers submitted from the past year. Then shes developed the following regression equation relating expected travel cost (y) to number of days on the road (x,) to number of days on the road (x,) and distance traveled (x,) in miles: y = $90.00 + $48.50x + $0.40x The coefficient of correlation computed wa .68 If Bill Tomlison returns from a 300-mile trip that took him out of town for 5 days, what is the expected amount he should claim as expenses (use the regression equation to predict this value Tomlinson submitted a reimbursement request for $685. what b whould the accountant do? Should any other variables be included? Which ones? Why