The Editor of a Major Academic Book Publisher Claims That

question 211

Short Answer

The editor of a major academic book publisher claims that a large part of the cost of books is the cost of paper. This implies that larger books will cost more money. As an experiment to analyse the claim, a university student visits the bookstore and records the number of pages and the selling price of 12 randomly selected books. These data are listed below. $$\begin{array} { | c | c | c | } \hline \text { Book } & \text { Number of pages } & \text { Selling price } ( \$ ) \\\hline 1 & 844 & 55 \\\hline 2 & 727 & 50 \\\hline 3 & 360 & 35 \\\hline 4 & 915 & 60 \\\hline 5 & 295 & 30 \\\hline 6 & 706 & 50 \\\hline 7 & 410 & 40 \\\hline 8 & 905 & 53 \\\hline 9 & 1058 & 65 \\\hline 10 & 865 & 54 \\\hline 11 & 677 & 42 \\\hline 12 & 912 & 58 \\\hline\end{array}$$ Estimate with 90% confidence the selling price of a book with 900 pages.

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Definitions:

Sediment

Particulate organic and inorganic matter that accumulates in a solid layer on the surface of land or within bodies of water.

Air Currents

Movements of air resulting from differences in air temperature and pressure, contributing to weather patterns and climactic conditions globally.

Northern Hemisphere

The half of Earth that is north of the equator, covering continents including North America, Europe, and most of Asia and Africa.

Southern Hemisphere

The half of Earth that lies south of the equator.