Stock price change for a smaple of stocks from the S \& P 500 (August 2-6, 2010)
A data frame with 50 observations on the following variable.
SPChange Change in sock price (in dollars)
A random sample of 50 companies from Standard \& Poor's index of 500 companies was selected. The change in the price of the stock (in dollars) over the 5-day period from August 2 - 6, 2010 was recorded for each company in the sample.