Data Analysis Fundamentals

# Data Analysis Fundamentals - Data Analysis Fundamentals...

This preview shows pages 1–8. Sign up to view the full content.

© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Fundamentals Professor Whitney Professor Whitney

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Procedure Four Step Procedure for Data Analysis Step 1: Coding Step 2: Data Entry Step 3: Tabulation (“Descriptive Summary”) Step 4: Drawing Inferences through Statistical Testing
© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Step 1: Coding of the Questionnaire The researcher assigns variable names and numbers to the responses to aid in the data entry of the survey & data analysis Example from Online Dating Survey (names are Q#) Q1: How familiar are you with the concept of online dating? 5 Extremely familiar 4 Very familiar 3 Somewhat familiar 2 Not too familiar 1 Not at all familiar Q7: What would be an appropriate monthly fee for this basic service? 1 \$1-5 2 \$6-10 3 \$11-15 4 \$16-20 5 \$21-25 6 \$26-30 7 More than \$30

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Step 2: Data Entry Creating a database with all survey responses Excel SPSS Each column is a separate variable from the survey (e.g. question) Each row is one person’s responses to the survey questions. Sample data from first 35 respondents.
© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Step 3: Tabulation or “Descriptive Summary” Preliminary summary of the data No statistical testing of hypotheses but you are performing statistical procedures Typically summarize all data Means, medians, standard deviations, etc. Tables &/or Charts One-way Frequency (percentages) » A table or chart showing the number of respondents choosing each answer to a survey question. Cross Tabulations » A table or chart showing responses to one question relative to the responses to one or more questions in the survey.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Step 3: Descriptive Summary (cont.) Measures of Central Tendency Mean, Median, Mode Measures of Dispersion Range, Variance, Standard Deviation
© 2011 Robert H. Smith School of Business University of Maryland Data Analysis Step 3: Descriptive Summary (cont.) Calculating the Standard Deviation: The measure of dispersion calculated by: (1) subtracting the mean of the series from each value in a series (called the deviation score, di) (2) squaring each result, summing the results, dividing the sum by the number of

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern