Assignment Instructions

DESCRIPTIVE STATISTICS

Your first IBM SPSS assignment includes two sections in which you will do the following:

• Create two histograms.
• Calculate measures of central tendency and dispersion.

This will give you some experience with the data set.

Key Details and Instructions

• Submit your assignment as a Word document.
• Refer to theIBM SPSS Step-by-Step Guide: Histograms and Descriptive Statistics [DOC]and to theCopy/Export Output Instructions [HTML]for additional help in completing this assignment.
• As you work on this assignment, you may find theData Set Instructions [DOC]helpful.
• Provide a title for your document and your name.

Thegrades.savfile is a sample SPSS data set. The data represent a teacher's recording of student demographics and performance on quizzes and a final exam. This week, you will create and describe two histograms and a descriptives table using these data.

Part 1

Create two histograms for visual interpretation using the following variables:

SPSS VariableDefinitionGenderfemale =1; male =2Finalfinal exam: number of correct answers

Create two histograms and paste them into your Word document:

• A histogram for male students.
• A histogram for female students.

Briefly describe what a visual inspection of this output tells you about the nature of the curves.

Part 2

Create a descriptives table to assess measures of central tendency and dispersion using the following variables:

SPSS VariableDefinitionGPAPrevious grade point averageQuiz3Quiz 3: number of correct answers

Create a descriptives table and paste it into your Word document.

Under the table:

• Report the mean, standard deviation, skewness, and kurtosis for GPA and quiz3.
• Briefly describe what skewness and kurtosis tell you about these data with regard to normality.

Submit both sections of your assignment as an attached Word document.

SCORING GUIDE

Your Work will be evaluated using this criteria.

VIEW SCORING GUIDE

Competencies Measured

By successfully completing this assignment, you will demonstrate your proficiency in the following course competencies and assignment criteria:

• Competency 1:Analyze the computation, application, strengths, and limitations of various statistical tests.
• Below the output, provide an accurate interpretation of histograms for males and females.
• Below the output, report descriptive statistics and interpret skew and kurtosis values.
• Competency 5:Apply a statistical program's procedure to data.
• Provide histograms for males and females.
• Provide a descriptive statistics table.