Question 2 (10 marks) The supply chain manager of a fresh food product company in Australian wants to determine whether the business plant location has any effect on operating cost. The manager has considered Melbourne, Sydney, Brisbane and Adelaide business plants and their operating costs over the past 5 months were recorded as below. Note: Assume the size of the business plants are similar across the locations Administrative Cost ($ 000) Melbourn Sydne Brisban Adelaid e y e e 500 620 750 450 650 550 690 370 690 720 550 500 750 490 700 600 500 600 700 450 At the 5% level of significance, is there evidence of a significant difference in mean operating cost across above locations? Use six steps process of hypothesis testing to answer the question. Note - You must show all the calculations. Excel output will not be graded