The Head Librarian at the Library of Congress Has Asked

question 26

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%

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Definitions:

Cross-Cultures

Refers to the comparison or interaction between different cultures, focusing on their differences and similarities.

Operational Definition

Defines a theoretical term in a way that allows it to be manipulated or measured.

Non-Western Societies

Societies or cultures that are not based on Western traditions, often emphasizing community-oriented values and practices differing from those in Western cultures.

Under-Emphasised

Refers to giving insufficient emphasis or attention to something that may be important or deserving of more recognition.