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May 25, 2015

Homework Help: statistics

Posted by trina on Sunday, April 29, 2012 at 8:10pm.

Lorraine was in a hurry when she computed a confidence interval for . Because was not known, she used a Student's t distribution. However, she accidentally used degrees of freedom n + 1 instead of n - 1. v Will her confidence interval be longer or shorter than one found using the correct degrees of freedom n - 1?

Answer


a.
shorter


b.
longer

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