Question: Critical Thinking Lorraine was in a hurry when she computed a confi dence interval for m. Because s was not known, she used a Students

Critical Thinking Lorraine was in a hurry when she computed a confi dence interval for m. Because s was not known, she used a Student’s t distribution.

However, she accidentally used degrees of freedom n instead of n 1.

Was her confi dence interval longer or shorter than one found using the correct degrees of freedom n 1? Explain.

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