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| Teaching Since: | May 2017 |
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MCS,MBA(IT), Pursuing PHD
Devry University
Sep-2004 - Aug-2010
Assistant Financial Analyst
NatSteel Holdings Pte Ltd
Aug-2007 - Jul-2017
t Tests
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 "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.
Submit your assignment as an attached Word document in the assignment area.
Attachments:
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