10:11 ~ ... +265 992 26 65 53 . .. 2 June, 05:41 BUS 215 ASSIGNMENT Instructions: 1. Due date is 9" June, 2025 (Your work should be uploaded on Google classroom) 2. Questions I and 2 should be done with a pencil and a ruler, the results of which should be scanned and uploaded on the google classroom 3. Remember to include citations and references for question 3. Failure to do so will lead to loss of marks (minimum of 6 authentic references within the most recent 6 years) 4. There will be no extension of the assignment submission due date (no negotiations) Questions 1. The data in the table is about monthly wages in '000 kwachas of employees in a company Wages Number of employees 500-1250 5 1250 -2000 29 2000 -2750 66 2750 -3500 3500 -4250 21 4250 -5000 Prepare the following: Histogram (15 marks) ii. Frequency polygon (10 marks) Ogive (cumulative frequency polygon) (15 marks) 2. Yamikani is planning to carry out a study on the relationship between the amount of time a student puts to studying Business Statistics and the grade they obtain in an exam. There are a number of activities Yamikani needs to carry out in order to complete the study and these include writing introduction and background to the study (2 weeks), literature review (3 weeks), study design and methods (2 weeks), data analysis and results presentation (4 weeks), and discussion of the findings and conclusion (3 weeks). Required: Prepare a Gant chart (20 marks) 3. Discuss validity and bias as regards to statistical study. (consider arguing in line of the nature of the concepts, forms in which the concepts manifest itself, how to handle the issues resulting from the concepts) (40 marks) Reply O