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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.
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What are the problems from associated with polling methods?
Some problems associated with polling methods include sampling bias if the sample is not representative of the population, nonresponse bias if certain groups are less likely to respond, question wording bias if questions are leading or ambiguous, and margin of error that can impact the precision of the results.
What are the different types of biasing?
Fixed Bias,Self Bias, Forward Bias, Reverse Bias
A bias is a what?
a bias is a(n)
What bias is called self bias?
What? Bias is a one sided opinion
What is a synonym for experimental bias?
An experimental bias is a bias introduces by scientists or experimenters
A personal opinion?
bias
What is a tendency in one direction or another regarding a particular issue?
Bias
Is bias always negative?
Not necessarily. Bias is just an opinion. Therefore, you can have a good bias (I believe that this is amazing), but you can also have negative bias (Myspace sucks!) In electronics, bias can be either negative or positive.
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 an ex of bias?
I'm bias of hammburgers
What part of speech is bias?
"bias" is a noun.
What is the definition of anti-bias?
anti-bias?
