Why is the margin of error higher if the confidence level is higher?
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Plankton5165:
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.
lfromnj:
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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