Do you think your pulse rate is higher when you are taking a quiz than when you are sitting in a lecture? The data in Table 6.27 show pulse rates collected from 10 students in a class lecture and then from the same students during a quiz. The data are stored in QuizPulse10. Construct a 95% confidence interval for the difference in mean pulse rate between students in a class lecture and taking a quiz.

Table 6.27

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Std. Dev. 4 6. Mean Student 3 10 12.5 71 68.8 66.1 Quiz 75 52 53 52 80 56 90 76 61 70 61 66 12.8 Lecture 73 47 88 55 70 75 78