When more information is needed about a problem and a tentative hypothesis needs to be made more specific, marketers usually conduct ____ research.

In determining whether someone is an independent contractor or an employee all but which of the following questions are important?

a. What control does the employer have over the details of the work? b. Was the task contracted for performed? c. Did the worker provide his or her own tools? d. How is the worker compensated?

The standard deviation of a normal distribution

a. is always greater than zero b. is always 1 c. can be any value d. cannot be negative