Wednesday
May 27, 2015

Homework Help: Statistics & Probability

Posted by Alia on Friday, January 11, 2013 at 3:59pm.

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

Members