The pulse rate of 11 people was measure before and after goi

The pulse rate of 11 people was measure before and after going on a new thrill ride at the park. A researcher wants to determine if the pulse rate \"after\" is significantly more than the pulse rate \"before\" . The results are as shown

sugject Before After

1 85 85

2 79 84

3 73 87

4 76 84

5 75 83

6 79 92

7 74 77   

8 67 71

9 80 76

10 69 84

11 71 80

Using the significance level of 10%, is the pulse rate \"after\" significantly more than the pulse rate \"before\"

Solution

Using a ti-84, plugging in these to L1 and L2, then producing an L3 so that L3 = L2 - L1, the p value using t test is

p = 0.00174

Thus, as p < 0.10, then there is sufficient evidence that the pulse rate after is greater than before.