Refer to Exercise 13.19. This time, the data (beats per minute) came from female students before and after the scream. Perform a sign test to see whether the pulse rate went up significantly, using a significance level of 0.05 and treating the sample as random.

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Women Women Pulse BeforePulse After Pulse Before Pulse After 64 100 80 60 92 80 68 68 112 84 68 104 92 72 84 80 68 60 68 68 80 92 76 72 80