Table 5. Intercepts and slopes of seven carcass parts in regression function

	Grade 1+	Grade 1	Grade 2
Intercept	0.28	−3.56	−4.96
Linear regression slope
Belly (X1)	2.59	3.00	3.32
Neck bone-out (X2)	14.40	17.25	17.14
Spare ribs (X3)	−24.33	−29.12	−32.19
Loin bone-out (X4)	−7.10	−8.07	−8.27
Tenderloin (X5)	−46.56	−56.56	−64.88
Shoulder (X6)	10.56	11.15	12.19
Ham bone-out (X7)	4.66	5.48	6.06

Population numbers for Grades 1⁺, 1, and 2 are 145,872, 157,833, and 115,616, respectively.