Problem:
Look up the daily trading volume for the following stocks during a recent five-day period (please identify the five-day period chosen)
- JP Morgan Chase
- Wal-Mart
- Microsoft
- IBM
- Boeing
Randomly select five stocks from the NYSE and examine their trading volume over the same five days.
a) What are the average volumes for the two samples?
b) Would you expect this difference to have an impact on the efficiency of the markets for the two samples? Why or why not?