sampling distribution

Question 1

what do we mean when we say point estimator is unbiased

Answer 1

when expected value of point estimator equals populatin parameter

Question 2

standard error refers to

Answer 2

standard deviation of point estimator

Question 3

sampling distribution first step

Answer 3

determine form or shape of sampling dsitribution

Question 4

what do we use when population from which we are sleecting does not have normal distribution

Answer 4

central limit

Question 5

what provides a better estimate of population mean

Answer 5

a larger sample
-as sample size inc, standard error dec
-larger sample size provdes higher probability that sample mean is w/in specified distance of population mean