Picture from Nov 25, 2010

Sarah Hardy, PhD
Director of Institutional Research

Associate Professor
Department of Mathematics & Computer Science
University of Maine Farmington

Office: 100 Brinkman
228 Main St, Farmington, ME 04938

Department Phone: 207-778-7120  
Office Phone: 207-778-7124    

Math & CS Department Web Site

University Web Site

Current Vitae

Links for MAT 120 (Introduction to Statistics) Spring 2014

Video tutorial on using a calculator

Installing R and Rcmdr (i.e. R Commander)

PC Instructions
Mac Instructions

For PCs I have a video on Youtube which is outdated now, but close enough to follow it - just note that we we are using a different dataset this time. Video Tutorial for PCs on YouTube

Youtube Videos about finding a SD with a calculator
Online app for calculating standard deviations

Video instructions for first Rcmdr Assignment (in blue book on page 39)

Links for MAT 120 (Introduction to Statistics) Fall 2013

Daily Calendar

Final Mini-Project
Data
: UMF Fall 2010 Student Survey Data - .csv format

           Two-sample T-test with Rcmdr - Video Tutorial on YouTube

          Chi-Square Tests - Video Tutorial on YouTube

          Regression - Video Tutorial on YouTube

MPG - R and Rcmdr Assignment

 Download Data: 2014 Model Year MPG.csv
Youtube Video with R and Rcmdr instructions (Importing a .csv datafile, Numerical Summaries, Histograms, Boxplots and Plots of Means)
Assignment with instructions on what to turn in (passed out in class)

To do page 123 with R, in regular R window type:

> p=seq(.05,.95,.05)
> se=sqrt(p*(1-p)/100)
> plot(p,se)

Installing R and Rcmdr


Dataset: For PCs: Fall 2013 Gas Prices - Excel file (you do not need to have Excel to use the Excel file)
For Macs: Fall 2013 Gas Prices - Comma-delimited file

PC Instructions
Mac Instructions

For PCs I have a video on Youtube which is outdated now, but close enough to follow it - just note that we we are using a different dataset this time. Video Tutorial for PCs on YouTube

Finding standard deviations

Youtube Videos about finding a SD with a calculator

R can also be used as a calulator and is one way of finding standard deviations.

To find standard deviations in R at the > type    (Note that this can be done without opening Rcmdr)

> sd(c(72,73,76,76,78))

To find other summary statistics in R at the > type

> summary(c(72,73,76,76,78))


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Links for MAT 120 Spring 2013

Daily Calendar

Mini-project Instructions (Spring 2013)

R & R Commander (Rcmdr) Instructions

Installation Instructions Note: Be sure to answer "Yes" when it asks you if you want to save your workspace at the end of your session.

Imprtant note before you watch the video. On a PC, when it finishes installing there should be two? “R” icon on your desktop – you will want to use the one that says Ri386 (the one that says Rx64 does not work properly with R Commander).

PC Instructions - Video Tutorial for PCs on YouTube (includes Assignment 1)
Macs Instructions - the even better new and improved instructions improved once more (Feb 3, 2013 version)

Rcmdr Assignment 1
You will first need to download 2013 MPG.xls or 2013 MPG.txt (those who do not have Excel on their laptops)

Rcmdr Assignment 2 - Numeric Summaries and Basic Graphs - Video Tutorial on YouTube

Two-sample T-test with Rcmdr - Video Tutorial on YouTube

Chi-Square Tests - Video Tutorial on YouTube

Regression - Video Tutorial on YouTube

Regression and Correlation Lab Assignment

UMF Fall 2010 Student Survey Data - Variable Key - Excel format - .csv format

 

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Links for MAT 367 Spring 2011

Daily Calendar

R & R Commander (Rcmdr) Instructions

Installation Instructions Note: Be sure to answer "Yes" when it asks you if you want to save your workspace at the end of your session.

PC Instructions - Video Tutorial for PCs on YouTube (includes Assignment 1)
Macs Instructions

R plotting characters (pch) and colors

Assignment 1
You will first need to download 2013MPG.xls or 2010MPGcsv.csv (those with Macs may need the .csv version)

Assignment 2 - Numeric Summaries and Basic Graphs - Video Tutorial on YouTube

Two-sample tests for Means ( t-tests and Wilcox test) Video Tutorial

Paired t-test Video Tutorial

Chi-Square Tests - Video Tutorial on YouTube - Fall 2010 Survey Data for Homework - Excel format - .csv format

Regression and Correlation Applets (Do as Homework)

Regression (Video Tutorial) , Confidence Intervals and Prediction Intervals (Video Tutorial and script) and Correlation (Video Tutorial) - Updated HW

Math Scores and Enjoy Math Data - Excel format - .csv format
Moose Collision Data - Excel format - .csv format
Body Fat Data - Excel format - .csv format
State Crime Data - Data Description - Excel format - .csv format

Regression Transformations, Quadratic Regression and Multiple Regression -Starter script - Transformations Video Tutorial Part 1 - Transformations Video Tutorial Part 2 - Quadratic Regression Video

Updated Homework (replaces pages 137-138)

Simulated XY Data - Excel format - xydf.csv
Balloon Data - Excel format - balloons.tex
Dog Dose Data - Data Description - Excel format - dogdose.tex
Loblolly Pine data - Data Description - Excel format - Loblolly.csv
Pond Data - Excel format - pond.tex
Longley Economic Data - Data Description - Excel Format - .csv format

Regression Homework 2 Answers Output

ANOVA - One-way and Two-Way Video Tutorial

Updated Homework (replaces pages 199-200)

Insect Trap Color Data - Excel format - .csv format
Iron Content and Cooking Pot Type - Excel format - .csv format
Rat Pup Swim Maze Data - Data Description - Excel format - .csv format
Warpbreaks Data - Data Desciption - Excel Format - .csv format
Guina Pig Tooth Growth Data - Data Desciption - Excel Format - .csv format

Logistic Regression - Video Tutorial

Logistic Regression R Homework - Shortened version (4/17) - Due Thurs 4/28 - ANSWERS

Coronary Data - Excel format - .csv format
UMF Fall 2010 Student Survey Data - Variable Key - Excel format - .csv format
Low Birth Weight Data - Data Description - Excel format - .csv format
Frog Data - Data Description - Excel format - .csv format

Annotated bibliographies - Helpful websites: Purdue, Cornell and UNC

Review Quiz for Test 1

Multiple Choice Review Questions for Test 2 - Answers to Multiple Choice Review Questions for Test 2

Links for MAT 120 Fall 2010

Daily MAT 120 Schedule

R & R Commander (Rcmdr) Instructions

Installation Instructions (Note: All the computers in the UMF computer have R and Rcmdr installed so you may use those instead of installing it on your own computer if you like.)

PC Instructions - Video Tutorial for PCs on YouTube (includes Assignment 1)
Macs Instructions

 

Final Review Sheet

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UMF Schedule Grid