Textbook Authors Must Be Careful That the Reading Level of Their

question 67

Essay

Textbook authors must be careful that the reading level of their book is appropriate for the target audience. Some methods of assessing reading level require estimating the average word length. We've randomly chosen 20 words from a randomly selected page in Stats: Modeling the World and counted the number of letters in each word:
5, 5, 2, 11, 1, 5, 3, 8, 5, 4, 7, 2, 9, 4, 8, 10, 4, 5, 6, 6
-For a more definitive evaluation of reading level the editor wants to estimate the text's word length to within 0.5 letters with 98% confidence. How many randomly selected words does she need to use?

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Definitions:

Total Dollars

Refers to the aggregate amount of currency in various forms within a particular economic context.

Import Tariffs

Taxes imposed by a government on goods imported from other countries to protect domestic industries or to generate revenue.

Quotas

Quotas are limits set by a government on the amount of a particular commodity that can be imported or produced domestically in a certain period, used as a means to regulate trade and support local industries.

Comparative Advantage

The ability of an entity (could be a person, company, or country) to produce a good or service at a lower opportunity cost than another.