Imagine you are examining the effects of 3 doses of medication on migraines against a control....
- Imagine you are examining the effects of 3 doses of medication on migraines against a control. You collected the data and ran the analyses. The incomplete ANOVA table below shows your preliminary results:
|
Sum of Squares |
df |
Mean Square |
|
|
Between Groups |
1346.63 |
3 |
755.87 |
|
Within Groups |
|||
|
Total |
5387.98 |
241 |
A) Complete the ANOVA table.
B) How many participants were enrolled in the study?
C) Calculate your F statistic and p value for the one-way ANOVA procedure, and interpret your results.
Homework Answers
Solution:
A) Complete the ANOVA table.
Answer: The ANOVA table can be completed as:
B) How many participants were enrolled in the study?
Answer: There were 242 participants enrolled in the study.
C) Calculate your F statistic and p-value for the one-way ANOVA procedure, and interpret your results.
Answer: The value of the F statistic is:
Since the p-value is less than the significance level, we, therefore, reject the null hypothesis and conclude that the mean effect of 3 doses of medication on migraines is different.
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Imagine you are examining the effects of 3 doses of
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