What does it mean to say a statistic is unbiased?
What will be an ideal response?
Main Points:
An unbiased estimator is a statistic whose expected value (E) is the true population parameter.
An E is a type of mean. It is a mean of a statistic rather than a mean of individual observations.
Furthermore, it is the mean of an infinite number of instances of a statistic or of all possible instances of a statistic.
The sample size for these instances must be held constant.
You might also like to view...
Which sociological perspective sees the family as performing important tasks that contribute to society's basic needs and helping to perpetuate the existence of major social institutions and practices?
a. functionalism b. symbolic interactionism c. Marxism d. feminism
Despite the shocking nature of their crime, most mass murderers are not mentally ill
Indicate whether the statement is true or false
The amount of crime reporting in the media is not consistent with the actual rate of local crime. What causes this?
A. criminals aggressively seeking more publicity B. journalists rely on crime stories to make day-to-day news production more predictable C. local politicians demand more crime coverage from the media D. there is a great deal more crime occurring today than in the past
Which of the following would you expect to find in an inducible system?
A. A repressor protein, which is bound to DNA in absence of any other factor. B. A repressor protein, which is bound to DNA in the presence of a corepressor. C. An activator protein, which is bound to DNA in absence of any other factor. D. An activator protein, which is bound to DNA only in the absence of an inhibitor. E. None of the above