Elena Lucin a statistics student collected the data in the
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.
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