Can I get the answer step by step Thank you

Suppose we have the Heckscher - Ohlin - Vanek model with two large countries , hand f two goods X and Y , and two factors , I and K . We have the following factor supplies : In - 30 , Kh = 15 IS = 10 , KY = 85 ; the following GDPs : GDP DO , GDP = 400 ; and the following factor contents of trade : An I 18 . F - 25 . F - 18 . F IN Is 1 25 . What is the sign test statistic for this economy