Question
In: Statistics and Probability
A scientist wants to know if a new drug has an effect on stress response in...
A scientist wants to know if a new drug has an effect on stress response in rats. A sample of 9 rats are given a stress test before and after taking the drug and their scores are recorded. A higher score indicates a higher level of stress.
|
Rat |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
Pre |
1 |
4 |
2 |
4 |
1 |
3 |
6 |
1 |
5 |
|
Post |
2 |
3 |
5 |
2 |
3 |
1 |
5 |
4 |
3 |
a. State the null and alternative hypotheses
b. State the rejection region
c. Conduct a sign test on the above data
d. What can you conclude?
Solutions
Expert Solution
Hence, there is not enough evidence to conlcude that new drug has an effect on stress response in rats at 5% level of significance.
orchestra answered 1 year agoRelated Solutions
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