For each test below, follow the following steps.
(1) state the hypotheses,
(2) formulate an analysis plan
(3) analyze sample data
(4) interpret the results
You may use the TI83 to calculate the test statistic and pvalue,
but be sure you indicate which test you are using.
Test V – Pulse Rates and Fright
In a statistics class, 13 students took their pulse rates before and after being frightened. The frightening event was having the teacher scream and run from one side of the room to the other The pulse rates (beats per minute) of the students before and after the scream were obtained and are shown below. Treat this as if it were a random sample of community college students. Test the hypothesis that the mean of students’ pulse rates was higher after a fright, using a significance level of 0.05.
Student 

Pulse Before 
Pulse After 
64 
68 
100 
112 
80 
84 
60 
68 
92 
104 
80 
92 
68 
72 
Student 

Pulse Before 
Pulse After 
84 
88 
80 
80 
68 
92 
60 
76 
68 
72 
68 
72 
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