Navigate to Lesson 26 and open the homework problem TRE Occupational Hazards.
The table is based on data from the U.S. Department of Labor, Bureau of Labor Statistics. Does any particular occupation appear to be most prone to homicides?
The Chi-square value is the sum of (Observed - Expected)2/Expected for each cell. This is written as:
Χ2 = ∑(Observed - Expected)2
Expected.
The numerator difference, Observed - Expected, is known as the residual.
Find the residual for Taxi Driver and Homicide. Be sure to show all of the decimal places as well as the sign.