Estimating with uncertainty - Confidence intervals

4 important questions on Estimating with uncertainty - Confidence intervals

What is the same property of confidence intervals compared to standard error?

Confidence intervals can be alculated for all population parameters.

What does the confidence interval measure?

A range of values surrounding the sample estimate that is likely to contain the population parameter.

Why is the 95 CI a confidence, and not a probability?

In 95% of the cases, the interval will contain the value of the population parameter. 5 % of the sampled intervals will not containt the parameter value.
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Why does the 95% confidence interval provides a most-plausible range for a parameter?

Values lying within the interval are most plausible, whereas those outside are less plausible, based on the data.

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