Methods

Chandra Sen’s Method

Statistical Averaging Method (SAM)

New Statistical Averaging Method (NSAM)

Ordinary simplex method

Zmax = 2 with

(0, 1.3571, 0, 0)

Zmax = 4.0935 with

(0, 1.3571, 0, 0)

Zmax = 4.0933with

(0, 1.3571, 0, 0)

Fuzzy programming method

Zmax = 2 with

(0, 1.3571, 0, 0)

Zmax = 2.2501 with

(0, 1.3571, 0, 0)

Zmax = 6.006 with

(0, 1.3571, 0, 0)