Problem: CI for a linear combination of parameters How should we go about constructing a (1-a)% CI for a linear combination of parameters, such as coa + CB? • What is E[coa + c1B]? • What is Var(coa + cB)? How can we use these to form CIs?

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Q: regression coefficients differ in multiple regression and simple linear regression?

A: *Answer:

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Q: What is basic regression? What is multiple regression? How do they both relate to Data Mining?

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