The Librarian at the New York City Public Library Has

question 44

Multiple Choice

The librarian at the New York City Public Library has asked her assistant for an interval estimate of the mean number of books checked out each day.The assistant took a sample and found the mean to be 880 books.She provides the librarian with an interval estimate of between 790 and 970 books checked out per day.An efficient,unbiased point estimate of the number of books checked out each day at the New York City Public Library is:

• A)790
• B)880
• C)90
• D)None of these choices.

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Definitions:

Gene Expression

The process by which information from a gene is used to synthesize a functional gene product, often proteins, affecting the cell’s function and development.

Signals From Other Cells

Chemical or physical messages sent from one cell to another, which can affect the behavior, growth, or metabolism of the receiving cell.

Genetic Information

The hereditary material of an organism, stored in DNA or RNA, that determines the organism's development and functioning.

Bacteria

One of the two prokaryotic domains of life. Domain Bacteria includes organisms such as Escherichia coli and other familiar microbes.