A researcher hypothesizes that electrical stimulation of the lateral habenula will result in a decrease in food intake (in this case, chocolate chips) in rats. Rats undergo stereotaxic surgery and an electrode is implanted in the right lateral habenula. Following a ten day recovery period, rats (kept at 80 percent body weight) are tested for the number of chocolate chips consumed during a 10 minute period of time both with and without electrical stimulation. The testing conditions are counter balanced. Compute the appropriate t-test for the data provided below. Stimulation No Stimulation 12 8 7 7 3 4 11 14 8 6 5 7 14 12 7 5 9 5 10 8 a) What would be the null hypothesis and alternative hypothesis in this study? b) What is your tcrit? c) Is there a significant difference between the two groups? d) Interpret your answer. e) Write out your t-value in APA format.
A researcher hypothesizes that electrical stimulation of the lateral habenula will result in a decrease in food intake (in this case, chocolate chips) in rats. Rats undergo stereotaxic surgery and an electrode is implanted in the right lateral habenula. Following a ten day recovery period, rats (kept at 80 percent body weight) are tested for the number of chocolate chips consumed during a 10 minute period of time both with and without electrical stimulation. The testing conditions are counter balanced. Compute the appropriate t-test for the data provided below.
|
Stimulation |
No Stimulation |
|
12 |
8 |
|
7 |
7 |
|
3 |
4 |
|
11 |
14 |
|
8 |
6 |
|
5 |
7 |
|
14 |
12 |
|
7 |
5 |
|
9 |
5 |
|
10 |
8 |
a) What would be the null hypothesis and alternative hypothesis in this study?
b) What is your tcrit?
c) Is there a significant difference between the two groups?
d) Interpret your answer.
e) Write out your t-value in APA format.
*ANSWER ALL PARTS OF THE QUESTION*
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