My Math Forum  

Go Back   My Math Forum > College Math Forum > Advanced Statistics

Advanced Statistics Advanced Probability and Statistics Math Forum


Reply
 
LinkBack Thread Tools Display Modes
July 2nd, 2016, 03:30 AM   #1
Newbie
 
Joined: Jul 2016
From: maryland

Posts: 1
Thanks: 0

Confidence interval word problem help

Confidece interval question
I have 2 statistics questions that I do not understand fully, can anyone solve these and explain the process for retrieving the answer?
Thanks!!

A Survey Of 47 mernbers Of a health club reported that prefer walking Or running On a treadmill to any other type of aerobic excrcise. Construct and interprct a 99% confidence interval for the percentage
of health club who prefer walking/running on a treadmill.
99% - CI
Interpretation:

Suppose we want to estimate to within $1000 the mean salary of all college graduates who were business
majors. How many business majors would we sample to estimate the mean salary to within $1000 with
95% confidence, if the standard deviation= 15, 000?
discocisco is offline  
 
Reply

  My Math Forum > College Math Forum > Advanced Statistics

Tags
confidence, interval, problem, woed, word



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Confidence interval GoldenMedal Probability and Statistics 1 June 20th, 2014 06:48 PM
Confidence interval problem chapsticks Algebra 0 October 16th, 2012 10:33 PM
Confidence Interval please help Kat-M Advanced Statistics 0 May 12th, 2009 11:21 AM
Confidence Interval shalomhk Advanced Statistics 1 August 1st, 2008 01:50 PM
Confidence Interval symmetry Advanced Statistics 1 June 18th, 2007 09:17 PM





Copyright © 2018 My Math Forum. All rights reserved.