An unbiased estimator is a sample statistic: a. used to ...

[Kthamas]

An unbiased estimator is a sample statistic:
 a. used to approximate a population parameter
  b. which has an expected value equal to the value of the population parameter
  c. whose value is usually less than the population parameter
  d. that incorporates the standard error of the mean

Question 2

A regression approach can also be used to deal with seasonality by using ____ variables for the seasons.
 a. smoothing
  b. response
  c. residual
  d. dummy

[leahm14]

Answer to Question 1

b

Answer to Question 2

d