Statistikk og Simulering

Økt 13. Estimation of the Mean

Point estimation

14.3. Point estimation

Suppose you want to use the sample mean X̄ as an estimator for E(X).

Øving 14.4 What do we mean by an unbiased estimator? Is X̄ an unbiased estimator?

Øving 14.5 Give an expression for the standard error of X̄. (Remember to use the results from the previous section.)

Øving 14.6 Discuss

How can you estimate the standard error when you estimate E(X) from a sample of size n?