pam 210 Homework 1 - Families with 2 earners Families with...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework 1 PAM 210 Intro to Stats A. Sinan Ünür Julie Melamud Nanditha Ramachandran February 16, 2007
Background image of page 1

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

View Full DocumentRight Arrow Icon
1) Describe the data set: Variables : Median incomes of the: families with no earners, families with 1 earner, families with 2 earners, and families with 3 earners (in dollars) Observational units: States 2) Calculate the five number summary for each quantitative variable Variable Minimum Q1 Median Q3 Maximum Families with no earner 11514 24441 27351 30695 36918 Families with 1 earner 28382 33524 37492 42434 51881 Families with 2 earners 56368 61928 66629 76590 91787 Families with 3 earners 69692 78234 82763 91325 110383 3) Compare the distributions of the quantitative variables by generating histograms: Median Income, dollars Frequency 120000 100000 80000 60000 40000 20000 0 20 15 10 5 0 120000 100000 80000 60000 40000 20000 0 20 15 10 5 0 Families with no earners Families with 1 earner
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Families with 2 earners Families with 3 or more earners Median I ncome of Families in the United States Families with no earners: Slightly skewed to the left, almost symmetric Families with 1 earner: Slightly skewed to the right. Families with 2 earners: Skewed to the right. Families with 3 earners: Skewed to the right. 4) Look for outliers: Number of Earners in Family Median Income, dollars 3 or more earners 2 earners 1 earner no earners 120000 100000 80000 60000 40000 20000 Median I ncome of Families in the United States There is one outlier present. The outlier is the observation for the families with no earners for the District of Columbia, with a median income of 11,514....
View Full Document

This homework help was uploaded on 03/30/2008 for the course PAM 2100 taught by Professor Abdus,s. during the Spring '08 term at Cornell University (Engineering School).

Page1 / 3

pam 210 Homework 1 - Families with 2 earners Families with...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online