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In the presence of heteroscedasticity OLS estimators are biased as well as inefficient?
Wiki User
∙ 12y ago
They are still unbiased however they are inefficient since the variances are no longer constant. They are no longer the "best" estimators as they do not have minimum variance
Wiki User
∙ 12y ago
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Is standard deviation biased or unbiased?
Standard deviation (SD) is neither biased nor unbiased. Estimates for SD can be biased but that depends on the formula used to calculate the estimate.
What is a biased spinner?
ok I'm sure not many people will be asking this but a biased spinner is basically a spinner that is unfair or not accurate
What is the difference between a biased and unbiased sample?
Biased- (Not random) Unbiased-(Random) Example: (ubbiased) Woman takes random people to take a survey.
Difference between biased and unbiased errors?
A biased error is one that is caused by a factor inherent to the source of the error. An unbiased error is one that comes from anywhere.
What is definition of biased?
Leaning or tending to lean to one side.
What is non-response bias?
One effect of non-response is that is reduces the sample size. This does not lead to wrong conclusions. Due to the smaller sample size, the precision of estimators will be smaller. The margins of error will be larger.A more serious effect of non-response is that it can be selective. This occurs if, due to non-response, specific groups are under- or over-represented in the survey. If these groups behave differently with respect to the survey variables, this causes estimators to be biased. To say it in other word: estimates are significantly too high or too low.
How do you relate biased and unbiased to the real world?
you can not people can be biased and not biased
Use the word biased in a sentence?
I think that question was biased! It almost made me think you were biased! It should be obvious my answer is biased! Sometimes I think that I.Q. test questions are biased!
Is Science biased?
Science is not biased.
What is a biased?
A biased sample is a sample that is not random. A biased sample will skew the research because the sample does not represent the population.
What does biased and un-biased mean?
Biased- prejudice Unbiased- fair or impartial
What is a biased sample?
A biased sample is a sample that is not random. A biased sample will skew the research because the sample does not represent the population.
What terms shows gender bias?
Businessman is biased. Professional or executive is bias free.Foreman is biased. Supervisor is bias free.Girl Friday is biased. Clerk is bias free.Newsman is biased. Journalist is bias free.Stewardess is biased. Flight attendant is bias free.
What is a sentence for the word biased?
The judges are biased in their opinion on who won the medal.
Are biased statements supported by evidence?
No, biased statements are not supported by evidence.
Is a biased sample always valid?
a biased sample is valid determin
Can researched information can never be biased?
Researched information can never be biased
