what do we mean when we say point estimator is unbiased
when expected value of point estimator equals populatin parameter
standard error refers to
standard deviation of point estimator
sampling distribution first step
determine form or shape of sampling dsitribution
what do we use when population from which we are sleecting does not have normal distribution
central limit
what provides a better estimate of population mean
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