Explain concept of regression analysis and its types

In about two pages, discuss and illustrate “Testing of Hypothesis” as a concept, and explain the usefulness, provide examples.

2) In about two pages, discuss and illustrate “Design of Experiments DOE” as a concept, and explain the usefulness, why we use it and when?

3) Explain the concept of “Regression Analysis”, its types (3 types at least), applications and usefulness. Provide real application of its usage.

4) Some times, Maximum likelihood estimation is not applicable, Explain and provide an example?

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