Accounts at the firm Walker and Walker believed that several traveling executives submit unusually high travel vouchers when they return from...

Accounts at the firm Walker and Walker believed that several traveling executives submit unusually high travel vouchers when they return from business trips. The accountants took a sample of 200 vouchers submitted from the past year; they thendeveloped the following multiple regression equation relating expected travel cost(Y) number of days, (Y (x1) ) number of days on the road and distance traveled (X2).Y=$90.00 + $48.50x1 + $0.40X2The coefficient of correlation computed was 0.68.