MyPlain

Blog

  • 15’擦窗小笔记

    镜面清洁机说明书关键点：

    1、吸进的水，从机器后边的孔倒出。
    2、清洗机腔，水从上部的口倒进去，而非倒水的孔。

    行动步骤：

    1、先冲洗纱窗。
    2、内部凉快都冲刷，吸水干净
    3、左侧外可触达区域冲刷、吸水，两块都要
    4、右侧外可触达
    5、顶部擦拭
    6、底部轨道清洁

    透过干净的窗户，看窗台边的三角梅树，感觉很棒！但愿这棵能安然度过此次寒冬。

     

  • 《统计学》笔记

    1.1 什么是统计学：
    用以搜集数据、分析数据和由数据得出结论的一组概念、原则和方法。
    4个要素：问题、数据、方法、结论
    （定义——》变量——》分析——》建议）

    描述统计、
    推断统计，参数估计——》假设检验

    数据的欺骗性，幽灵数据

    对数据要有敬畏之心。

    SPSS、EXCEL

    1.2什么是数据
    变量的取值即为数据

    计量尺度：
    定量变量——》数值型数据
    分类变量、顺序变量——》定性变量/数据

    时间：
    截面数据、时序数据

    2.1 抽样与调查知识点
    why省时、省钱；不能采用全面调查，如破坏性试验；设计科学，结果比全面调查可靠

    什么是好的抽样？符合研究目的；能从样本计算出有效的估计值及其变动；可实践性

    样本量大小与好坏无关，作用是决定统计分析结果的误差。
    样本结构也无关，随机样本结构往往和总体不一致。
    样本指标与其他调查的数值一致，只能说明这个样本不差，而不能证明它是一个好样本。

    概率抽样方式：简单、分层、pps、整群、系统、多阶、多相

    概率抽样基本准则：单元是从总体中按一定的概率随机抽取的。

    随机：调查总体中的每个单元都以非零的概率入样。
    不等于随意，
    随意等于随机的条件：
    1）总体元素一致
    2）总体自动随机，如天文、物理、化学
    社会科学领域往往不满足

    等概率一定是随机的，随机不局限于等概率。

    How随机：
    1）一定要通过随机化程序实现
    怎么判断？
    1）多次抽样，频率/变化异常
    2）一次性，抽样程序是否满足随机化

    非概率抽样是用主观的方法从总体中抽选单元，方式：方便、判断、配额、自愿、滚雪球；
    优点：快速简便、费用低、不需要抽样框；
    缺点：对总体的假定一般不成立不能推断总体、不能得到可靠的估计值及误差估计值、样本一般有倾向性与偏差。
    应用：
    1）形成一种想法
    2）设计开发概率抽样调查的初始步骤
    3）解释概率抽样的调查结果
    4）抽选参加访谈的个人

    误差（抽样/非抽样）
    非抽样误差：抽样框误差、回答误差、无回答误差（没有获得该单元的数据）
    无回答大于30%的调查结果一般是不可信的。（无回答率；回答与无回答的样本差异）
    降低无回答的方法：
    1、改进调查组织（匿名、激励、选择合适的时间）
    2、多次访问（3次还低于85%，继续）
    3、替换样本单元（替换规则须在调查实施之前确定）
    4、对敏感性问题采用技术展开

  • The Importance of Setting Milestones

    Why Milestones Matter

    1. Clarifies Workload & Scope

    • Breaking a project into milestones and tasks helps you see the true amount of work required.
    • It turns large deliverables into manageable chunks, making workload management easier.

    2. Keeps the Project on Track

    • Milestones provide clear deadlines for deliverables.
    • They serve as checkpoints to ensure the project progresses at the right pace.

    3. Enables Adjustments

    • Helps uncover areas where scope, timelines, or resources may need adjustment.
    • If a milestone requires more work than expected, it signals the need to negotiate scope or add resources early.

    4. Motivates Teams & Engages Stakeholders

    • Reaching a milestone provides a moment of celebration, boosting team morale on long projects.
    • Serves as a tangible check-in point to demonstrate real progress and quality to stakeholders.

    The Criticality of Order & Timing

    Sequential Order:

    • Milestones must happen in a specific order because they are often dependent on one another (e.g., design approval must happen before development can begin).

    Strict Deadlines:

    • Missing a milestone deadline can delay the entire project schedule, forcing overtime or requiring extra resources to catch up.
    • Delays can negatively impact the budget, especially if milestone completion is tied to client payments.

  • Facilitating a project kick-off meeting

    Here are the key takeaways from the video on facilitating a project kick-off meeting:

    🎯 Purpose of the Kick-off Meeting

    • Formal Start: It marks the official beginning of the project planning phase.
    • Alignment: It unites the team around a shared vision, goals, scope, and individual roles.
    • Collaboration: It builds team rapport and establishes how the group will work together.

    👥 Who to Invite

    • Core Team: Members identified in the RACI chart created during initiation.
    • Key Stakeholders: The project sponsor and other stakeholders to ensure everyone is on the same page regarding the high-level plan.

    📅 Proposed Agenda Structure (Approx. 1 Hour)

    Most kick-off meetings follow a similar structure. Here is a suggested time allocation:

    TimeTopicKey Activities
    10 minsIntroductionsTeam intros, roles, and a fun fact to build rapport.
    5 minsProject BackgroundOverview of how/why the project started and setting the vision.
    5 minsGoals & ScopeDefine boundaries (in-scope vs. out-of-scope), launch dates, and milestones.
    5 minsRolesClarify specific responsibilities for the project duration.
    10 minsCollaborationDiscuss tools (e.g., Asana, spreadsheets), communication channels, and meeting cadence.
    10 minsNext StepsSet expectations for immediate actions and what comes next.
    15 minsQ&AOpen floor for questions, feedback, and a confidence poll (scale of 1-5).

    📝 Logistics & Best Practices

    • Preparation: Finalize the agenda and send it to attendees 1-2 days in advance.
    • Note-taking: Assign a teammate to take notes and record action items so you can focus on presenting.
    • Recording: Consider recording the session for absent or dispersed team members (with permission).
    • Follow-up: Send a post-meeting email summarizing key points, outcomes, and action items. Invite further questions.

    ​

  • 笔记：谈判准备十步曲Getting ready to negotiate