Colleen didn’t have a lot of time to conduct her marketing research, so she went to the library to see what data she could find from available sources. Colleen is using data sources for her research.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

On a production possibility curve, data points that fall outside of the curve represent what

Where do buyers and sellers go to exchange a specific product