Saturday
May 30, 2015

Homework Help: Math

Posted by Mark on Friday, April 25, 2014 at 4:41pm.

LongLast Inc. produces car batteries. The mean life of these batteries is 60 months. The distribution of the battery life closely follows the normal probability distribution with a standard deviation of 8 months.

As part of its testing program, LongLast tests a sample of 25 batteries.

What is the standard error of the mean?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Members