11.4.2. Pettitt’s Test

Try these first

1. 1.

   What is Pettitt's Test used for?

   Hint

   Think about changes in rainfall observations.

2. 2.

   Is Pettitt's Test a parametric or non-parametric test?

   Hint

   Recall our discussion on test types.

3. 3.

   What is the primary purpose of Pettitt's Test?

   • To detect multiple change-points
   • To detect a single change-point
   • To analyze normal distribution

   Hint

   Focus on the 'single' aspect of the test.

4. 4.

   Pettitt's Test is a:

   • True
   • False

   Hint

   Recall the discussions on test classifications.

5. 5.

   Consider a dataset of monthly rainfall from a city over 20 years. If a new construction project alters local climatic conditions, how would you use Pettitt's Test to assess the impact on rainfall consistency?

   Hint

   Identify the time of construction as a potential point of change.

6. 6.

   Develop a comparative case study involving Pettitt’s Test. Include scenarios with different datasets and discuss expected outcomes.

   Hint

   Consider how other environmental factors might influence the results.