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:

Secret Ballot

A voting method in which a voter's choices in an election or a referendum are anonymous, safeguarding the right to privacy in the electoral process.

Conservative Goals

Objectives or aims that seek to preserve traditional institutions, values, and practices, emphasizing stability, and continuity, and often resistant to rapid change or innovation.

Concert of Europe

An informal agreement between major European powers in the 19th century aimed at preserving the balance of power and preventing the outbreak of major wars through diplomacy.