t-Test Application Please follow Instructions Masters Level

T-TEST APPLICATION AND INTERPRETATION

Instructions

Complete the following for this assessment:

· For this assessment, you will use the Data Analysis and Application Template (DAA Template [DOC]).

· For help with SPSS, refer to IBM SPSS Step-By-Step Guide: t Tests [DOCX].

· For help copying SPSS output into your DAA, review the Copy/Export Output Instructions [HTML].

· For information on the data set, you may find the Data Set Instructions [DOC] helpful.

· Refer to the 7864 Course Study Guide for information on analyses and interpretation.

This assessment is on t-tests. You will analyze the following variables in the grades.sav data set:

SPSS Variable	Definition
Gender	female =1; male =2
GPA	previous grade point average

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 an alternate hypothesis for the independent samples t-test.

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

· Create SPSS output showing the Levene's Test for Equality Variances. Run the Levene's test on the dependent variable test for the entire sample. Do not split the data up by gender before running the homogeneity test.

· Paste the table in the DAA.

· Interpret the Levene's test.

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

Paste the SPSS output of the t test. Below the output:

· Report the means and standard deviations for each group.

· State the results of the t-test using the "Assume equal variances" row.

· Interpret the statistical results against the null hypothesis and state whether it is accepted or rejected.

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

· Provide a brief summary of your analysis and the conclusions drawn about this t-test.

· Analyze the limitations of the statistical test and/or possible alternative explanations for your results.

Step 5: Write Section 5 of the DAA: Application

· Analyze how you might use the independent samples t-test in your field of study.

· Name an independent variable and dependent variable that would work for such an analysis and why studying it may be important to the field or practice.

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

Software

The following statistical analysis software is required to complete your assessments in this course:

· IBM SPSS Statistics Standard or Premium GradPack, version 24 or higher, for PC or Mac.

You have access to the more robust IBM SPSS Statistics Premium GradPack.

Please refer to the Statistical Software page on Campus for general information on SPSS software, including the most recent version made available to Capella learners.

Make sure that your SPSS software is downloaded and installed with fully activated licensing on your computer and running properly within your operating system (PC or Mac). If you need help with these steps, refer to the SPSS Installation Helper.