ySluuen/Player lest.aspx?testld-1719079608centerwin-yes MAT 107 Index 7732 Quiz:

Question

ySluuen/Player lest.aspx?testld-1719079608centerwin-yes MAT 107 Index 7732 Quiz: Module 6 - Quiz Submit Quiz This Question: 1 pt 11 of 18 (14 complete) This Quiz: 18 pls p previous year. How many subjects are needed to estimate the number of books read the previous year within one book with 90% confidence? initial survey results indicate that = 18 8 books A 90% confidence level requires subjects (Round up to the nearest whole number as needed) Enter your answer in the answer bo:x 4-15 PM 2/2/2017 Type here to searo

Explanation / Answer

Given |x - | = 1, = 18.8 z for 90% = 1.645

x - = z / n

=> 0.5 = 1.645 * 18.8 / n

=> n = 1.645 * 18.8 / 0.5

=> n = (1.645 * 18.8)2 / 0.52

=> n = 3825.6699

=> n = 3826 books.

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