Gender Male Female Total High School 250 350 600 Education Level College/Under Grad 460 540 1000 Postgraduate 65 85 150 Total 775 975 1750 22. (2 points) State appropriate null and alternate hypothesis. 23. (2 points) What is the critical value? Question 1 (20 Marks) . Beta company uses the periodic inventory system. The beginning balance of inventory and subsequent inventory purchases made by the company during the month of July 2019 are given below: July 01: Beginning inventory, 400 units @ $18 per unit. July 18: Inventory purchased, 600 units @ $20 per unit. July 25: Inventory purchased, 800 units @ $25 per unit. The Beta company sold 1,200 units during the month of July. . . Required: Compute the cost of goods sold and ending inventory on July 31, 2019 using the following inventory costing methods: 1. First in, first out (FIFO) method (10 marks) 2. Weighted Average cost method (10 marks)