Chapter 25- Paired Samples and BlocksAP Questions A study measured how fast subjects could repeatedly push a button when under the effects of caffeine. Subjects were asked to push a button as many times as possible in two minutes after consuming a typical amount of caffeine. During another test session, they were asked to push the button after taking a placebo. The subjects did not know which treatment they were administered each day and the order of the treatments was randomly assigned. The data, given in presses per two minutes for each treatment is as follows. Use a paired t procedure to determine whether or not caffeine results in higher rate of beats, on average, per two- minute period. Subject Beats Caffeine Beats Placebo 251 201 284 262 300 283 1 2 3 4 321 290 5 6 7 240 259 294 291 377 354