As Part of an Economics Class Project, Students Were Asked

As part of an economics class project, students were asked to randomly select 500 New York Stock Exchange (NYSE) stocks from the Wall Street Journal. As part of the project, students were asked to summarize the current prices (also referred to as the closing price of the stock for a particular trading date) of the collected stocks using graphical and numerical techniques. Identify the experimental unit of interest for this study.

A) a single stock traded on the NYSE
B) the 500 NYSE stocks that current prices were collected from
C) the current price (or closing price) of a NYSE stock
D) the entire set of stocks that are traded on the NYSE