Heart Rate before and after Coffee Elena Lucin, a statistics student, collected the data in the table showing heart rate (beats per minute) for a random sample of coffee drinkers before and 15 minutes after they drank coffee.
Carry out a complete analysis, using the techniques you learned in this chapter.
Use a 5% significance level to test whether coffee increases heart rate.
The same amount of caffeinated coffee was served to each person, and you may assume that conditions for a t-test hold.
