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How do i construct a confidence interval?

Anonymous

∙ 10y ago

Updated: 10/18/2022

Typically, the mean is the center and the interval extends a fixed number of standard-errors-of-the mean in wither direction. M+/- 1 SEM for example. I guess because you don't know, I should give you the simplest.

Wiki User

∙ 10y ago

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Q: How do i construct a confidence interval?

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Which statistics are used to construct a confidence interval?

The parameters of the underlying distribution, plus the standard error of observation.

Why confidence interval useful?

Why confidence interval is useful

When population distribution is right skewed is the interval still valid?

You probably mean the confidence interval. When you construct a confidence interval it has a percentage coverage that is based on assumptions about the population distribution. If the population distribution is skewed there is reason to believe that (a) the statistics upon which the interval are based (namely the mean and standard deviation) might well be biased, and (b) the confidence interval will not accurately cover the population value as accurately or symmetrically as expected.

What happens to the confidence interval if you increase the sample size?

The confidence interval becomes smaller.

Is confidence interval and confidence limits are same thing?

no,these are not the same thing.The values at each end of the interval are called the confidence limits.

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