Let's say we conducted a study to determine if coffee consumption is associated with
peptic ulcers.
We questioned 1,300 people that came into Starbucks over the month of September
and asked them about their coffee consumption. Of these, 780 individuals reported
drinking 3 or more cups of coffee per day, while the remainder reported less than 3
cups per day.
We decided to follow everyone over the course of a year to see if they developed a
peptic ulcer. 327 of the 3+ cup per day drinkers developed an ulcer compared to 94
of the individuals that reported drinking less than 3 cups of coffee per day.
Based on the information provided, which series of numbers corresponds with a, b, c,
d (in that order) for a 2x2 contingency table?
327, 453, 94, 426
94, 426, 327, 453
453, 327, 426, 94
426, 453, 94, 327
