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What is the purpose of conducting post hoc tests

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Practice Exercise 1: Post Hoc Tests

1. What is the purpose of conducting "post hoc" tests after determining that there is a difference among the groups being compared?

Use the data from Practice Exercise #13 and conduct a one-way ANOVA. This time specify the following post hoc tests by selecting the Post Hocs option: LSD (Fisher's LSD), S-N-K (Student- Neuman-Keuls), Tukey (Tukey's HSD), and Scheffe.

2. Identify which groups are significantly different based on the results of the LSD post hoc test.

3. Identify which groups are significantly different based on the results of the S-N-K post hoc test.

4. Identify which groups are significantly different based on the results of the Tukey post hoc test.

5. Identify which groups are significantly different based on the results of the Scheffe post hoc test.

6. Did all of the post hoc tests agreed with respect to which groups were significantly different?

7. Write a statement as it might appear in an article that reports the results of the one-wayANOVA and Tukey post hoc test.

Practice Exercise 2: Post Hoc Tests

Use the data from Practice Exercise #14 and conduct a one-way ANOVA. This time specify the following post hoc tests by selecting the Post Hocs option: LSD (Fisher's LSD), S-N-K (Student-Neuman-Keuls), Tukey (Tukey's HSD), and Scheffe.

1. Identify which groups are significantly different based on the results of the LSD post hoc test.

2. Identify which groups are significantly different based on the results of the Scheffe post hoc test.

3. Did both post hoc tests agree with respect to which groups were significantly? different?

4. Write a statement as it might appear in an article that reports the results of the one-way ANOVA and LSD post hoc test.

Reference no: EM132595425

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