please help me I'm not sure what i did wrong.

x Incorrect. Quiz vs Lecture Pulse Rates 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 1 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. Student 1 2 3 4 5 6 7 8 9 10 Mean Std. Dev. Quiz 75 52 52 80 56 90 76 71 70 66 68.8 12.5 Lecture 73 53 47 88 55 70 61 75 61 78 66.1 12.8 Table 1 Quiz and lecture pulse rates for 10 students Construct a 90% confidence interval for the difference in mean pulse rate between students taking a quiz and sitting in a class lecture. Click here for the dataset associated with this question. Round your answers to one decimal place. X X The 90% confidence interval is -6.8 11.7 Click if you would like to Show Work for this question: Open Show Work