š¢ Student Q&A
Q1: Why do we divide by nā1 in the bootstrap SE formula?
This uses sample standard deviation logic ā dividing by nā1 makes it unbiased under resampling.
Q2: Is MLE always the same as OLS in linear regression?
Only when errors are normally distributed. Otherwise, MLE and OLS may differ.
Q3: How many bootstrap samples are enough?
Usually 1,000 or more gives stable SE estimates. But 100 is okay for teaching demos.
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