Employment statistics in the US are often based on two nationwide monthly surveys: the Current Population Survey (CPS) and the Current Employment Statistics (CES) survey. The CPS samples approximately 60,000 US households and collects the employment status, job type, and demographic information of each resident in the household. The CES survey samples 140,000 nonfarm businesses and government agencies and collects the number of payroll jobs, pay rates, and related information for each firm.
(a) What is the population in the CPS survey?
(b) What is the population in the CES survey?
(c) For each of the following statistical questions, state whether the results from the CPS or CES survey would be more relevant.

i. Do larger companies tend to have higher salaries?
ii. What percentage of Americans are selfemployed?
iii. Are married men more or less likely to be employed than single men?