预测和价格变动

此篇思维导图详细的总结了预测和价格变动，价格调整，加权综合指数，预测问题，成本方程，有需要的小伙伴下载收藏哦！

C3FORECASTING

• sampling
  • sampling methods
    • probability
      • known chance
      • random sampling
      • stratified random sampling
      • systematic sampling
      • multistage sampling
      • cluster sampling
    • non-probability
      • chance is not known
      • quota sampling
    • feature advantages disadvantages
• cost equation
  • expected cost,not actual cost
  • Y=a+bx
    • High low method
      • step fixed cost
    • Linear low method
      • correlation coefficient
        • r
      • coefficient of determination
        • r2
        • explained，not caused
• forecasting and price movements
  • price adjustment
    • Pn/In=P0/I0
  • index number
    • price index
      • Pn/P0*100
    • quantity index
      • Qn/Q0*100
  • weighted aggregate indices
    • laspeyre
    • Paasche
    • Fisher's
  • forecasting problems
    • unreliable
    • PESTEL
• Time series analysis
  • used for forecast sales
  • components
    • Trend
      • centred moving average
    • seasonal variations (SV)
      • The additive model
        • A=T+SV
        • absolute terms 相对值
      • The muitiplicative model
        • A=T*SV
        • proportional terms 绝对值
    • cyclical variations(CV)
    • random variations(RV)
• Data