True or False

- A field study is an experiment done in the natural environment in which work goes on as usual, but treatments are given to one or more groups.

- Cause-and-effect inferences can be contaminated by the effects of the passage of time. Such contamination effects are denoted history effects.

- A good problem statement includes both a statement of the research objective(s) and the research question(s).

- In an investigation on the relationship between customer satisfaction and loyalty among customers of a supermarket, the unit of analysis is the supermarket.

- Company wants to have an overview of the profits made in the last five years in the Jordan, Egypt and the Lebanon. To get this, the profits of the three countries have to be aggregated. The unit of analysis in this case is the individual country.

- Company wants to have an overview of the profits made in the last five years in the Jordan, Egypt and the Lebanon. To get this, the profits of the three countries have to be aggregated. The unit of analysis in this case is the individual country.