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Author Question: Briefly discuss what is meant by the dummy variable trap. What will be an ideal ... (Read 131 times)

geodog55

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on: Jun 24, 2018
Briefly discuss what is meant by the dummy variable trap.
 
  What will be an ideal response?

Question 2

The inventory level that triggers an order is called the ________.
 
  A) lot size
  B) order quantity
  C) reorder point
  D) rate of return
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
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aburgess

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Reply #1 on: Jun 24, 2018
Answer to Question 1

In general, k distinct regions or subsets can be identified uniquely with k -1 dummy variables. If we try to use k dummy variables to represent k distinct subsets, then a linear relationship between predictor variables will result, and estimation of coefficients will be impossible. This is sometimes referred to as the dummy variable trap.

Answer to Question 2

C


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