Determine Whether the Study Is an Observational Study or an Experiment

question 51

Multiple Choice

Determine whether the study is an observational study or an experiment.
-A scientist was studying the effects of a new fertilizer on crop yield. She randomly assigned half of the plots on a farm to group one and the remaining plots to group two. On the plots in group one, the new fertilizer was
Used for a year. On the plots in group two, the old fertilizer was used. At the end of the year the average crop
Yield for the plots in group one was compared with the average crop yield for the plots in group two.

• A)experiment
• B)observational study

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Definitions:

Monopolistic Competitor

A type of market structure where many firms offer products that are similar but not identical, allowing for some degree of market power and product differentiation.

Short Run

A period in economics during which some factors of production and costs are variable, while others remain fixed.

Long Run

In economics, a period in which all factors of production and costs are variable, allowing for full adjustment to changes.

Profit

The financial gain achieved when the amount earned from a business activity exceeds the expenses, costs, and taxes involved in sustaining the activity.