The Head Librarian at the Library of Congress Has Asked

question 184

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,approximately how large a sample did her assistant use to determine the interval estimate?

• A)2
• B)3
• C)12
• D)It cannot be determined from the information given.

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Definitions:

Equitable Requirement

A condition or stipulation based on fairness, justice, and reasonableness, often considered in legal contexts.

Lease Contract

A legal agreement in which one party rents property, services, or goods from another party for a specified period of time.

Commercial Impracticability

A legal doctrine that excuses a party from performing a contract when events have occurred making performance excessively difficult, expensive, or harmful.

Frustration of Purpose

A legal doctrine that allows parties to be relieved from their contractual obligations if an unforeseen event undermines the contract's original purpose.