The Head Librarian at the Library of Congress Has Asked

question 186

Multiple Choice

The head librarian at the Library of Congress has asked her assistant for an interval estimate of the mean number of books checked out each day.The assistant provides the following interval estimate: from 740 to 920 books per day.If the head librarian knows that the population standard deviation is 150 books checked out per day,and she asked her assistant to use 25 days of data to construct the interval estimate,what confidence level can she attach to the interval estimate?

• A)99.7%
• B)99.0%
• C)98.0%
• D)95.4%

---

Definitions:

Hypokrisia

In Meehl’s theory, the reduced selectivity with which nerve cells respond to stimuli, especially as seen in schizophrenia.

Neuronal Reactivity

The responsiveness of neurons in the brain to various stimuli or changes in the environment, affecting an individual's behavior and cognitive processes.

Meehl's Theory

An influential set of hypotheses proposed by psychologist Paul Meehl, particularly concerning the etiology of mental disorders.

Prolonged Labour

A condition in childbirth where labor lasts for a significantly longer duration than is typically expected, possibly leading to complications.