Which of the following statements is false? Managerial accounting is concerned with providing information to managers for use within the organization. o Managerial accounting emphasizes decisions affecting the future, relevance, timeliness, and segment performance. o Managerial accounting is not mandatory and does not need to comply with externally imposed rules. Managerial accounting serves the needs of those outside the organization. O Managerial accounting helps managers perform three vital activities: planning, controlling, and decision making