# Capella University Anova Application and Interpretation Data Questions

Complete the following :

The grades.sav file is a sample SPSS data set. The data represent a teacher’s recording of student demographics and performance across three sections of the course. Each section consists of 35 students (N = 105). There are 21 variables in grades.sav.

This week’s assignment is on ANOVA. You will analyze the following variables in the grades.sav data set:

 SPSS Variable Definition Section Class section Quiz3 Quiz 3: number of correct answers

Step 1: Write Section 1 of the DAA: The Data Analysis Plan

• Name the variables used in this analysis and whether they are categorical or continuous.
• State a research question, null hypothesis, and alternate hypothesis for the analysis of variance (ANOVA).

Step 2: Write Section 2 of the DAA: Testing Assumptions

Test for one of the assumptions of ANOVA – normality.

• Create SPSS output showing the Shapiro-Wilk test of normality. Run the Shapiro-Wilk test on the dependent variable test for the entire sample. Do not split the data up by gender before running the normality test.
• Paste the table in the DAA.
• Interpret the Shapiro-Wilk test and how you determined whether the assumption of normality was met or violated.

Step 3: Write Section 3 of the DAA: Results and Interpretation

• Paste the following SPSS tables into the document:
• Descriptives table
• ANOVA table
• Multiple Comparison table
• Report the means and standard deviations of quiz3 for each group of the section variable.
• Report the results of the F test and interpret the statistical results against the null hypothesis and state whether it is accepted or rejected.
• Finally, if the F is significant, interpret the post-hoc tests (multiple comparisons).

Step 4: Write Section 4 of the DAA: Statistical Conclusions 