1) When do you use an analysis of variance(ANOVA)?
2) What is the within-groups population variance estimate based on? How and why is it affected by the null hypothesis being true or not?
3) What is the between-groups population variance estimate based on? How and why is it affected by the null hypothesis being true or no
Use data attached.
Compute a one-way analysis of variance(ANOVA) to determine whether there are significant age differences across years in college (freshman, sophomores, juniors, and seniors). Report your results in APA format and write a short interpretation.
Move your output into a 1-page Microsoft Word document and w
See attached files.
Complete the following exercises Be sure to save your output and export it to your Word document, in which you also must answer the analysis questions and present your results section as indicated:
Exercises 1-3 on p. 191, One-way analysis of variance(ANOVA)
Exercises 5-8 on p. 208, Two-way ANOVA
This problem will introduce the learner into a technique called Analysis of Variance. For this course we will only conduct a simple One-Way ANOVA and touch briefly on the important elements of this technique. The One-Way ANOVA is an extension of the independent -t test that can only look at two independent sample means. We can