"The average Plumber salary in the United States is $58,659" - https://www.salary.com/research/salary/benchmark/plumber-sal...

"The national average salary for Human Resources is $65,314 per year in United States." - https://www.glassdoor.com/Salaries/human-resources-salary-SR...

"Forbes cited HR Manager as a “best paying job for women” in 2011, with over 70 percent of the profession dominated by females." - https://www.forbes.com/sites/theyec/2012/07/11/why-human-res...

"At the administrative level, 30 percent of human resources assistants had an associate degree as of 2013, 26 percent had a high school diploma and 21 percent had at least one year of college experience" - https://work.chron.com/education-requirements-human-resource...