movies. I collect saliva samples (to assess cortisol, stress) from students after they watch an action movie and then another (two days later) after they watch a horror movie. The amount of stress hormone in the saliva is measured as ng/mL.Test the hypothesis that saliva cortisol levels will be different between the two genres of movies at an alpha of 0.05. (Have action - horror be set for your differences). a. What is the null hypothesis?
I want to assess whether or not students produce more stress hormones (cortisol) after watching different types of movies. I collect saliva samples (to assess cortisol, stress) from students after they watch an action movie and then another (two days later) after they watch a horror movie. The amount of stress hormone in the saliva is measured as ng/mL.Test the hypothesis that saliva cortisol levels will be different between the two genres of movies at an alpha of 0.05. (Have action - horror be set for your differences).
a. What is the null hypothesis?
b. What is the alternative hypothesis?
Data:
Action Movie |
Horror Movie |
|
10 |
12 |
-2 |
15 |
18 |
-3 |
16 |
17 |
-1 |
20 |
21 |
-1 |
24 |
22 |
2 |
24 |
23 |
1 |
26 |
27 |
1 |
13 |
16 |
-3 |
18 |
20 |
-2 |
19 |
23 |
-4 |
20 |
15 |
5 |
24 |
25 |
1 |
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