The number of employee accidents from the housekeeping department in Hotel A is related to bed height, bed size, and spinal loading. The linear regression model formula has been calculated as following: Y = 3.9+ 8.5(X1) + 2.9(X2) + 5(X3).
Calculate the expected number of employee accidents under conditions a, b, and c:
X1 (bed height) X2 (bed size) X3 (spinal loading)
a 4 5 6
b 8 3 4
c 9 2 0