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Level of Confidence and Sample Size

I'm trying to determine what happens to the sample size if the level of confidence is reduced from 95% to 90% but the allowable error and the standard deviation remain, the same. Should it be increased, decreased, remain the same or none of these.

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I'm trying to determine what happens to the sample size if the level of confidence is reduced from 95% to 90% but the allowable error and the standard deviation remain, the same. Should it be increased, decreased, ...

Solution Summary

This solution determines whether the sample size should increase, decrease or remain the same if the confidence level is reduced from 95% to 90%

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