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Lorraine was in a hurry when she computed a confidence interval for μ. Because σ was not known, she used a Student's t distribu...Question
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
Answer
a.
shorter
b.
longer