Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example, describe in your own words how you would go about determining this average through:
a. Drawing a random sample
b. Drawing a systematic sample
c. Drawing a convenience sample
statistics - PsyDAG, Friday, March 23, 2012 at 5:02pm
You would want to control for the days of the week and times of purchases, so I would pick B.