This document presents a comprehensive solution for a business administration assignment, covering several units (11, 15, 19, 55, 65, and 73) within the field. The content addresses diverse aspects of business management, starting with an introduction to the field. Unit 11 focuses on workplace changes, performance management, and creating a positive office environment. Unit 15 delves into research methodologies, differentiating between primary and secondary data, qualitative and quantitative analysis, and factors like reliability and validity, with emphasis on data analysis techniques. Unit 19 discusses topics like email management, financial transactions, and postal services. Unit 55 covers financial planning, business cases, budgeting, and budgetary control. Unit 65 explores workforce planning, organizational structure, and identifying key factors in workforce management. Finally, unit 73 covers topics such as change management, communication, and project management. The assignment provides detailed explanations, examples, and practical applications for each unit, making it a valuable resource for students studying business administration. It also includes detailed task-wise breakdown and clear explanations to help students understand the concepts. The solutions provided are designed to assist students in understanding the core concepts and completing their assignments effectively.