×

### Let's log you in.

or

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

×

### Create a StudySoup account

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

or

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

Already have a StudySoup account? Login here

## INTRO TO STATISTICS

by: Giovani Ullrich PhD

14

0

4

# INTRO TO STATISTICS STAT 104

Giovani Ullrich PhD
ISU
GPA 3.5

Staff

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 :)

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

×
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

COURSE
PROF.
Staff
TYPE
Class Notes
PAGES
4
WORDS
KARMA
25 ?

## Popular in Statistics

This 4 page Class Notes was uploaded by Giovani Ullrich PhD on Saturday September 26, 2015. The Class Notes belongs to STAT 104 at Iowa State University taught by Staff in Fall. Since its upload, it has received 14 views. For similar materials see /class/214404/stat-104-iowa-state-university in Statistics at Iowa State University.

×

## Reviews for INTRO TO STATISTICS

×

×

### What is Karma?

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

Date Created: 09/26/15
1st Midterm Formulas x XXX X 36 x s Z n x 11 1 x s x Z 20 2 y y s z n y n l y s y y 0 b1x residual y f 2nd Midterm Formulas Probability Rules Complements A and AC PAc 1 7 PA PA or B PA PB 7 PA and B PA and B PAPBA PBPAB A and B are mutually exclusive if PA and B 0 A and B are independent if PA PA B or PB PB A or PA and B PAPB Discrete random variable X Probability distribution 0 S Px S 1 ZPx 1 Mean 1 ZxPx Standard deviation 039 Z x u2Px Binomial random variable x counts the number of successes in n independent trials where the probability of success on any one trial is p n 7 Probability function Px Jpx 1 pquot x x 012n x Mean 1 np Standard deviation 039 np1 p XBinn p NOI39mal I andOm Variable Y1 Distribution of the sample mean 17 Mean 1 Standard deviation 039 shape approximately normal YNNUI a 2 Mean 1 Standard deviation SD67 Standardize z g 17 N Neg u SD j Standardize z V New Formulas for the Final Exam Inference for the population mean u when 039 is known 7 9 039 7 9 039 7 9 039 Con dence 1nterval y z to y z 7 or y i z a e 4 Con dence Level 80 90 95 98 99 2 128 165 196 233 258 Test of hypothesis 2 M 039 e Inference for the population proportion p Con dence interval see con dence levels above 21 117010 to 21 10010 n n Test of hypothesis 2 A P0 1 P0 n Inference for the population mean u when 039 is NOT known s s Con dence interval 7 t 7 t0 yt 7 a a Table T with df n 1 Test of hypothesis I y u0 s a Inference for the mean difference of responses 01 7 s 7 s Con dence interval d t id to d t 7 3 J 5 J Table T with df n 1 Test of hypothesis t Sd 2 J Inference for difference of two population means 1 u2 2 2 2 2 Con dence interval 7 J72 t i S2 to y J72 t i S2 quot1 n2 n1 quot2 Table T with df minn1 1 n2 1 Test of hypothesis t Inference For Assumptions H07 Test Stat7 Reference Interval Section 039 quotknownquot a p one mean and observations How a i z 817 92 normal or large n n Z 0 standard normal observations 7 5 normal or large n HO39IL 7 x i t 83927 9393 T 3 x t With V n 7 1 independent 52 52 pl 7 p2 samples7 observations H0 1 7 p2 i1 7 502 it 1 2 102 normal or large 711712 n1 n2 difference in means T 75173171 1 71 71 t With V the smaller of m 7 1 and n2 7 1 independent 1 1 normal samples How1 7 p2 1 7 12 i tSP 0391 0392 n1 n2 T i17x27 3P 11 twithun1 n2 72 paired data 101 d mean difference normal differences or large n HOWd iSdW twithun71 5d dit Inference For Assumptions H07 Test Stat7 Reference Interval Section H0 1 A 1 A Z p 7 I i Z P i P 17 one proportion large n 1 7 7 837 94 T or 13 i 2 standard normal 2 H0 P1 j 172 f 0 7 21 i 22 A A A A Z 1 1 A A i P11P1P21P2 pl 7 p2 independent samples 131 7 13 pl 7 172 Z n1 n2 10 3 difference in proportions large 7117712 n A 72 A n2 1 1 1 39 use 1171 2172 orp17p2i2 m m 2 n1 n2 standard normal

×

×

×

### 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!"

Anthony Lee UC Santa Barbara

#### "I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Jim McGreen Ohio University

#### "Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

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

#### STUDYSOUP CANCELLATION 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 support@studysoup.com

#### STUDYSOUP REFUND POLICY

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: support@studysoup.com

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 support@studysoup.com

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.