The fire department in a large city is examining its promotion policy to assess if there is the potential for an age discrimination lawsuit. A random sample of 248 promotion decisions over the past years yields the following information:
Age at Promotion Decision
Promotion Decision Under 30 30-39 40-49 50 or Older
Promoted 9 29 34 12
Not Promoted 41 39 46 38
a) Provide a graph of the promotion information.
b) Is the promotion decision for the fireman related to the age of fireman?
c) What is the population to which your conclusion in part (b) is applicable?
d) What are some other variables, beside age, that needed to be addressed inan age discrimination analysis?