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December 08, 2019, 09:15:14 am
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  Why is the margin of error higher if the confidence level is higher?
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Author Topic: Why is the margin of error higher if the confidence level is higher?  (Read 284 times)
Plankton5165
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« on: August 03, 2019, 01:59:09 am »

I thought the margin of error was supposed to be lower.

It's also higher if the sample proportion is higher, which I thought was supposed to be lower as well.
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Deluded retread Vice Chair LFROMNJ
lfromnj
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« Reply #1 on: August 03, 2019, 01:03:11 pm »

Because thats how it works?

Example

90% sure that it is within 2 points
95% sure it is within 3 points.

3 points is a larger range so you can be more sure it is in that range rather than 2%.
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