2: Central Tendency

Due Week 2 ยท Friday, September 4

Author

Prof. Jack Reilly

Published

Fall 2026

Instructions

Answer all questions. Please upload your assignment to Blackboard as a PDF.


For questions 1โ€“5, please consider the following dataset.

Dataset

Name Salary Years Experience Job Description Education Level
Jane $45,000 1 Teacher College Degree
Sam $68,000 3 Analyst College Degree
Edwin $92,000 5 Police High School
Shareefa $140,000 20 Manager Graduate Degree
Dwight $72,000 12 Nurse College Degree
Jiang $68,000 9 Teacher College Degree
LeBron $48,000,000 21 Athlete High School

Questions

  1. What is the unit of analysis (the cases) in this table?

  2. Identify the level of measurement of each variable.

  3. What is the mean, median, and mode of the salary data in this table?

    • You may use Stata or a hand calculator to answer this problem, but you must show your work or code in your answer.
  4. Do you think the mean, median, or mode is the best estimate of central tendency for salary? Why?

  5. What measures of central tendency are possible to use for each variable in this dataset? Why?