INSTRUCTIONS: For this assessment:
Use the Data Analysis and Application template (DAA Template [DOCX] Download DAA Template [DOCX]).
For help with the statistical software, refer to the JASP Step-by-Step: t Tests [PDF] Download JASP Step-by-Step: t Tests [PDF]document.

View JASP Speedrun: t Test [Video] for a brief tutorial video on this assessment.

For information on the data set, refer to the 7864 Data Set Instructions [PDF] Download 7864 Data Set Instructions [PDF]document.
The grades.jasp Download grades.jaspfile is a sample data set. The data represent a teacher’s recording of student demographics and performance on quizzes and a final exam across three sections of the course.
You will analyze the following variables in the grades.jasp Download grades.jaspdata set:
Variables and Definitions
VariableDefinitionReviewAttended review sessions? 1 = no; 2 = yes.FinalFinal exam: number of correct answers.
Step 1: Write Section 1 of the DAA: 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 independent samples t-test.

Step 2: Write Section 2 of the DAA: Testing Assumptions
Test for one of the assumptions of t tests – equality (homogeneity) of variances.
Create statistical output showing the Levene’s Test for Equality Variances.Paste the table in the DAA template.Interpret the Levene’s test.
Step 3: Write Section 3 of the DAA: Results