Sunday
April 20, 2014

Homework Help: statistics

Posted by Laynette on Friday, September 2, 2011 at 9:48pm.

A researcher is interested in estimating the noise levels in decibels at area urban hospitals. She wants to be 95% confident that her estimate is correct. If the standard deviation is 4.02, how large a sample is needed to get the desired information to be accurate within 0.58 decibels? Show all work.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - A researcher is interested in estimating the noise levels in ...
statistics - A researcher is interested in estimating the average salary of ...
statistics - confidence intervals: A researcher is interested in estimating the ...
statistics - A researcher is interested in estimating the average salary of ...
statistics - Suppose that a researcher is interested in estimating the mean ...
statistics - Hearing levels or!@#$%^&pit noise in an aircraft can damage the ...
statistics - A researcher is interested in studying people’s mean age in a ...
statistics - a researcher is interested in studying people's mean age in a ...
Statistics - n a hospital 24 operating rooms were sampled. The mean noise level ...
statistics - a researcher is interested in comparing the effectiveness of three ...

Search
Members