×

### Let's log you in.

or

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

×

or

by: Erica Bass

57

0

2

# STA 282- 1/13/2016 STA 282QR

Erica Bass
CMU
GPA 3.54

Enter your email below and we will instantly email you these Notes for Intro to Statistics

(Limited time offer)

Unlock FREE Class Notes

Everyone needs better class notes. Enter your email and we will send you notes for this class for free.

Notes from Lecture 1/13/2016
COURSE
Intro to Statistics
PROF.
Fu Chijung
TYPE
Class Notes
PAGES
2
WORDS
KARMA
Free

## Popular in Statistics

This 2 page Class Notes was uploaded by Erica Bass on Thursday January 14, 2016. The Class Notes belongs to STA 282QR at Central Michigan University taught by Fu Chijung in Summer 2015. Since its upload, it has received 57 views. For similar materials see Intro to Statistics in Statistics at Central Michigan University.

×

## Reviews for STA 282- 1/13/2016

×

×

### 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: 01/14/16
Introduction: Conducting a Research Observational study: without attempting to influence the value of response or explanatory variables. Observes behavior. Designed Experiment Study: assigns to a certain group of individuals intentionally changes value of explanatory variable and records the value of the response variable of each group. Population: entire group of individuals to be studies Sample: a subset of the population that is being studied (cost, time, and accuracy are factors to consider) Parameter: numerical summary of a population Statistic: numerical summary of a sample Simple Random Sampling: using chance to select individuals from a population; everyone has equal chance of getting sampled Systematic Sampling: selecting every kth individual from a population. First individual selected is a random number between 1 and k. Stratified Sampling: obtained by separating the population into homogenous, non over lapping groups called strata. (Example: male versus female) Cluster Sampling: can not find a difference between groups. Qualitative Variables: allow for classification of individuals based on characteristics (gender, blood type) Quantitative: numerical measures of individuals (height, gpa) Continuing Variables: infinite number of possible values Discrete Variables: (Example – you can have 0, 1, 2 siblings; not 1.5 siblings) Nominal Variables: naming, labeling, categorizing (nationality, hair color) Ordinal Variables: allows to be arranged in a ranked, specific order Interval Variables: able to measure, arithmetic can be performed (Example – 0 degrees does no mean there is no temperature, temperature can be negative) Ratio Variables: (Example – Height; 0 inches means no length, can not be negative) Sampling Bias: bad samples; not all individuals in population included Non-Response Bias: not interested; doesn’t want to participate Response Bias: no ability to answer; misunderstood question, biased questionnaire Variable: characteristics that changes or varies over time and/or different individuals (hair color, white blood cell count) Experimental Unit: individual or object on which a variable is measured (person, car, class) Measurement: results when a variable is actually measured on an experimental unit

×

×

### BOOM! Enjoy Your Free Notes!

×

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

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."

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 material...plus I made \$280 on my first study guide!"

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