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1.Develop job descriptions for positions within the foodservice industry. 2.Practice legal interviewing and hiring procedures. 3.Design employee evaluation forms and conduct employee appraisals. 4.Examine employee motivation techniques. 5.Elaborate ideas for conducting effective training programs. The MLA format is the University standard for undergraduate papers. No points will be given for Homework...

I'm working on a data analytics discussion question and need an explanation and answer to help me learn.   What is an instrumental variable in linear regression? How do instrumental variables improve causal inference? Please answer both of these questions and give an example of an instrumental...