New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Week 7 notes

by: Kelsey Marr

Week 7 notes STAT 200

Kelsey Marr
Penn State
GPA 3.59
Elementary Statistics
Andrew Wiesner

Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Elementary Statistics
Andrew Wiesner
Class Notes
25 ?




Popular in Elementary Statistics

Popular in Statistics

This 2 page Class Notes was uploaded by Kelsey Marr on Sunday March 1, 2015. The Class Notes belongs to STAT 200 at Pennsylvania State University taught by Andrew Wiesner in Winter2015. Since its upload, it has received 44 views. For similar materials see Elementary Statistics in Statistics at Pennsylvania State University.

Similar to STAT 200 at Penn State

Popular in Statistics


Reviews for Week 7 notes


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 03/01/15
Stat 200 Andrew Wiesner Week 7 Notes Sample Distribution 1 Proportion 2 Mean Notation o Proportions pl population proportion This is a parameter P hat sample proportion statistic 0 Means Greek letter quotmuquot population mean parameter X barl sample mean statistic Parameters are summary measures of the population Statistics are summary measures from sample Parameters are xed statistics vary Since these statistics vary they can have distributions Conveniently under certain conditions the sample proportion and sample mean will follow a normal distribution Thus we can use zmethods to calculate probabilities Conditions for proportion o npg 10 o n1O Z 10 o if both are satis ed then p hat has an approximately normal distribution with a mean to p and a standard error to the square root of p1Dn Conditions for means 0 Population is normal 0 OR 0 Sample size is large enough ex n 3 30 What this implies if population distribution is unknown or not normal then with large enough sample the sample mean will be approximately normal This is referred to as the central limit theorem 0 If either is satis ed then x bar is approximately normal with a mean of mu 0 quotstandard errorquot is a measure of variability for a statistic Think of it as the standard deviation for a sample statistic quotstandard deviationquot is the SD for a sample 0 If conditions we discussed are met we can nd probabilities for a sample proportion and sample mean using 2 score Proportion z p hat pthe square root of p1Pn 0 Sample mean 2 x bar muSE O o In minitab we follow the same process as last week 0


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.