SARAH CASE MODELING STEPS
A Coggle Diagram about LACK OF FIT : REASON : CARAT PRICE (depends on Carat Weight) behaves linearly upto particular weight.
, Among Three Models: LOG - LOG was selected base on MAPE
- Regression - Linear Model - price (Dep) and carat Weight (Indep)
- Log - Linear Model. Dep ; ln(price) and Indep (Carat Weight)
- Log-Log Model: Dep (ln(price) and Indep : Ln (carat weight)