Step 1: Write Section 1 of the DAA.

Step 1: Write Section 1 of the DAA.

• Provide the context of the grades.sav data set.
• Include a definition of the specified variables (predictor, outcome) and corresponding scales of measurement.
• Specify the sample size of the data set.

Step 2: Write Section 2 of the DAA.

• Analyze the assumptions of the t test.
• Paste the SPSS histogram output for gpa and discuss your visual interpretations.
• Paste SPSS descriptives output showing skewness and kurtosis values for gpa and interpret them.
• Paste SPSS output for the Shapiro-Wilk test of gpa and interpret it.
• Report the results of the Levene test and interpret it.
• Summarize whether or not the assumptions of the t test are met.

Step 3: Write Section 3 of the DAA.

• Specify a research question related to gender and gpa.
• Articulate the null hypothesis and alternative hypothesis.
• Specify the alpha level.

Step 4: Write Section 4 of the DAA.

• Paste the SPSS output of the t test.
• Report the results of the SPSS output using proper APA guidelines (refer to the Unit 8 Introduction and the “Results” example from the Warner text in Chapter 5). Include the following:
  • t.
  • Degrees of freedom.
  • p value.
  • Effect size.
  • Interpretation of effect size.
  • Means and standard deviations for each group.
  • Mean difference.
  • 95% confidence interval of the difference of sample means.
• Interpret the results against the null hypothesis.

Step 5: Write Section 5 of the DAA.

• Discuss the implications of this t test as it relates to the research question.
• Conclude with an analysis of the strengths and limitations of the t test.

Submit your DAA Template as an attached Word document in the assignment area.