19:52 7 X Final_Exam_EBBA_Q2 5) 1/2 GIAO DUC VA DAO TAO JONG DAI HOC KINH TE DE THI HOC PHAN QUOC DAN BUSINESS STATISTICS He:. .......... .....Khoa:... ...... Dia diem thi: . ..... KHOA/VIEN: Vien QTKD Ngay thi:.. .....Ca thi........ Bo mon/Chuong trinh: E-BBA Thoi gian lam bai: 60 phut De so: 02 Question 1(4 points) A campus researcher wanted to investigate the factors that affect visitor travel time in a complex, multilevel building on campus. Specifically, he wanted to determine whether different building signs (building maps versus wall signage) affect the total amount of time visitors require to reach their destination and whether that time depends on whether the starting location is inside or outside the building. Three subjects were assigned to each of the combinations of signs and starting locations, and travel time in seconds from beginning to destination was recorded. An Excel output of the appropriate analysis is given below: ANOVA Source of Variation SS df MS F Signs 14008.33 Starting Location Interaction 48 Within 35305.33 Total 61649.67 1. What kind of ANOVA analysis we use here? 2. Fill in all empty cells in the above table. Give the explaination. 3. Test for the significance of signs. 4. Test for the significance of starting location. 5. Test for the significance of interaction between signs and starting location. 6. What is the conditions to conduct the above test? Question 2(2 points) One criterion used to evaluate employees in the assembly section of a large factory is the number of defective pieces per 1,000 parts produced. The quality control department wants to find out whether there is a relationship between years of experience and defect rate. Since the job is repetitious, after Ma de 02, trang 1/2 the initial training period any improvement due to a learning effect might be offset by a loss of motivation. A defect rate is calculated for each worker in a yearly evaluation. The results for 100 workers are given in the table below. Years Since Training Period