[Statistics] Can Someone Explain These Misconceptions about Confidence Intervals?

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Some of the most common **misconceptions about confidence intervals** are:

* “There is a 95% chance that the true population mean falls within the confidence interval.” *(FALSE)*
* “The mean will fall within the confidence interval 95% of the time.” *(FALSE)*

While I do know the true definition of confidence intervals, I wonder why the above are not true?

In: Mathematics

4 Answers

Anonymous 0 Comments

If you think about a bell curve, the average is in the middle of bell. Going out +/- 2 standard deviations gives you the range within 95% of the bell curve. The mean always lies within the distribution, not 95% of the time.

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