Why is an unbiased estimator for u better than a biased estimator for u? Suppose there are several unbiased estimators for u. What criterion would you use for selecting one of these estimators, and...

Why is an unbiased estimator for u better than a biased estimator for u?

Suppose there are several unbiased estimators for u. What criterion would you use for selecting one of these estimators, and why?

A recent survey asked employees in technology-related jobs what perks they would like their employer to provide. Out of 1200 randomly selected workers polled, 975 said they would like ongoing training paid for by their employer. Find a point estimate for the population proportion of all workers in technology-related jobs who would like ongoing training.