This document provides a detailed solution to a decision-making and problem-solving assignment. It begins by exploring the hierarchy of information-based business decision-makers, emphasizing the importance of the top tier driven by market analysis and research. The assignment then addresses a business problem of increasing expenses for XYZ Limited, outlining a step-by-step business research approach including problem identification, research design, method selection, sampling, data collection, and report preparation. It further explains asymmetrical relationships, detailing stimulus-response, property-disposition, and disposition-behavior connections. Different interview formats like telephone, video, panel, group, face-to-face, and informational interviews are discussed. The solution also covers the concepts of validity, reliability, and practicality in measurement, along with content, construct, and criterion validity. Finally, it presents data analysis components including a graph and explanations of the central limit theorem, confidence intervals, confidence levels, interval estimates, and point estimates.