Answer Happy

Problem 5. 1. Identify the issue presented in each of the following studies as confounding or inter- action. Then discuss how each of these issues might be dealt with in a statistical model. (a) A statistician working for ACME corporation collects data from male and female employees to see if there is a difference in the time it takes for new male and female employees to pass ACME Corp's programming certification. ACME Corp tends to hire male employees from technical colleges where students get several years of programming experience and female employees from liberal arts programs where students get at most one year of programming experience. (b) A statistician working for ACME corporation collects data from male and female employees to see if there is a difference in the time it takes for male and female employees to pass ACME Corp's English Proficiency Exam (EPE). Older male employees tend to take more time to pass the EPE than female employees and younger male employees tend to take less time to pass the EPE than female employees. 2. Present your own examples of confounding and interaction.