You go out and randomly select 10 people and force them to eat a lot of tumeric. One week later, you give them an inflammation test. You find the following inflammation values for each person: 2,3,0,-1,1,2,1,-1,2,2.
a. What is the mean of your sample?
I am telling you that sigma=2. b. If you assume the Null hypothesis is true, then what is the distribution your sample mean is drawn from?
c. Compute the corresponding Z-score for your mean.
d. What is the probability that the Null Hypothesis is true (p-value)?
e. Based on your alpha, should you reject the Null Hypothesis?
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