# What is the average length of a companys policy book? Suppose policy books are sampled from 45 medium-sized companies. The average number of pages in the sample books is 213, and the population standard deviation of 48. Use this information

What is the average length of a company’s policy book? Suppose policy books are sampled from 45 medium-sized companies. The average number of pages in the sample books is 213, and the population standard deviation of 48. Use this information to construct a 98% confidence interval to estimate the mean number of pages for the population of medium-sized company policy books.

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**Related Book For**

## Business Statistics for Contemporary Decision Making

**ISBN:** 978-0470910184

6th Edition

**Authors:** Ken Black

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