Posted by **rodrigo** on Thursday, September 29, 2011 at 6:54pm.

A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employeeâ€™s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that time percentage to within 6 percent and have a confidence of 98 percent?

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**Travis**, Sunday, July 22, 2012 at 8:10pm
377

- adu -
**Anonymous**, Saturday, October 22, 2016 at 10:37pm
dfdfgrtrrt

- statistics -
**lIZA**, Saturday, October 22, 2016 at 11:00pm
42352

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