Wednesday
April 1, 2015

Homework Help: math

Posted by katy on Sunday, July 29, 2012 at 11:45pm.

The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. THe sample mean is 5.15 years, and assume that the population standard deviation is known to be 1.68 years. Based on gthe sample data, construct the 99% confidence interval for the mean time required by all college graduates.

Also, determine the margin of error, E.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - The National Center for Education surveyed 4400 college graduates ...
STAT - 1. In a study of the income of U.S. factory workers, a random sample of ...
Statistics - An admissions director wants to estimate the mean age of all ...
elizabeth high school - . An admissions director wants to estimate the mean age ...
Math - A random sample of 42 college graduates revealed that they worked an ...
statistics - The scores of students on the ACT college entrance examination in ...
Statistics - 1. The scores of students on the ACT college entrance examination ...
statistics - The Colorado State Legisture wants to estimate the length of timer ...
Statistics - he Oil Price Information Center reports the mean price per gallon ...
statistics - An economist wants to estimate the mean income for the first year ...

Members