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Stats Project

OBJECTIVES:
To successfully complete this learning unit, you will be expected to:
Use SPSS to generate t test output.
Analyze the assumptions of the independent samples t test.
Articulate a research question, null hypothesis, and alternative hypothesis.
Interpret SPSS t test output and draw conclusions.
Analyze the application of t tests in your career.

Studies
Use your George and Mallery text to complete the following:
Read Chapter 11 “The t Test Procedure.” This reading addresses the following topics:

Independent Sample t Tests.
Paired Sample t Tests.
One Sample t Tests.
Significant Testing.
SPSS Commands.
Reporting and Interpreting SPSS Output.

—t Tests—
Please see the Resources area for links to resources that you will use for this assignment:

You will complete this assignment using the DAA Template.
Read the SPSS Data Analysis Report Guidelines for a more complete understanding of the DAA Template and how to format and organize your assignment.
Refer to Step-By-Step Guide: t Tests for additional information on using SPSS for this assignment.
If necessary, review the Copy/Export Output Instructions to refresh your memory on how to perform these tasks. As with your previous two assignments, your submission should be narrative with supporting statistical output (table and graphs) integrated into the narrative in the appropriate place (not all at the end of the document).
You will analyze the following variables in the grades.sav data set:

gender, gpa.
Step 1: Write Section 1 of the DAA

Provide a 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 of the Warner text in Chapter 5).
Include:
t.
Degrees of freedom.
t value.
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 t test analysis.

OBJECTIVES

To successfully complete this learning unit, you will be expected to:

Use SPSS to generate t test output.
Analyze the assumptions of the independent samples t test.
Articulate a research question, null hypothesis, and alternative hypothesis.
Interpret SPSS t test output and draw conclusions.
Analyze the application of t tests in your career.

PLEASE USE IN MY PAPER:
Resources
Website icon t Tests Scoring Guide.
MS Word icon DAA Template.
Website icon SPSS Data Analysis Report Guidelines.
MS Word icon IBM SPSS Step-By-Step Instructions: t Tests.
Website icon Copy/Export Output Instructions.
Website icon Capella Graduate Resources: APA Style and Format.