Sunday
April 20, 2014

Homework Help: Statistics & Probability

Posted by Alia on Friday, January 11, 2013 at 1:24am.

A researcher conducted a study of the access speed of 45 hard drives and concluded that his maximum error of estimate was 28. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he include in his new sample?
Select one:
a. 720
b. 45
c. 90
d. 180
Please can someone explain me how to do the above problem.
Thanks!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics & Probability - A researcher conducted a study of the access speed of...
statistics - A researcher conducted a study of the access speed of 40 hard ...
Statistics - An investigational drug study is being conducted. The initial ...
Statistics - A researcher reports an F-ratio with df= 2, 12 for a repeated ...
Math Statistics - An investigational drug study is being conducted. The initial ...
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 - A researcher wants to estimate the mean serum cholesterol level for...
PSY - Discuss three factors that a researcher can control when designing a valid...
Statistics - A clinical trial tests a method designed to increase the ...

Search
Members