What are the three types of business research? Indicate which type each item in the list below illustrates. Explain your answers.
a. Establishing the relationship between advertising and sales in the beer industry
b. Ranking the key factors new college graduates are seeking in their first career position
c. Estimating the 5-year sales potential for Cat-Scan machines in the Ark-La-Tex (Arkansas, Louisiana, and Texas) region of the United States
d. Testing the effect of “casual day” on employee job satisfaction
e. Discovering the ways that people who live in apartments actually use vacuum cleaners, and identifying cleaning tasks for which they do not use a vacuum