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StatisticsUnderstanding Basic StatisticsCritical Thinking Lorraine was in a hum when she computed a confidence interval for µ. Because a was not known, she used a Student's t distribution. However, she accidentally used degrees of freedom n instead of n - 1, Was her confidence interval longer or shorter than one found using the correct degrees of freedom n - 1 ? Explain.BuyFind*arrow_forward*

8th Edition

Charles Henry Brase + 1 other

Publisher: Cengage Learning

ISBN: 9781337558075

Chapter 8.2, Problem 10P

Textbook Problem

**Critical Thinking** Lorraine was in a hum when she computed a confidence interval for µ. Because *a* was not known, she used a Student's *t* distribution. However, she accidentally used degrees of freedom *n* instead of *n* - 1, Was her confidence interval longer or shorter than one found using the correct degrees of freedom *n* - 1 ? Explain.

Understanding Basic Statistics

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