U3D1-64 - Identify and discuss the goals of data screening and as well as how to identify and remedy errors, outliers and missing data...see details

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1. Apply the appropriate SPSS procedures for creating histograms to generate relevant output.

2. Generate SPSS output of histograms and interpret them.

3. Generate SPSS output of descriptive statistics and interpret them.

Unit 3 - Descriptive Statistics: Application INTRODUCTION

Your first SPSS data assignment uses the SPSS grades.sav data file created in Unit 2. You will conduct a visual inspection of histograms. You will also analyze and interpret important measures of central tendency and dispersion.

OBJECTIVES

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

Unit 3 Study 1- Readings Use your IBM SPSS Statistics Step by Step text to complete the following:

• Review "An Introduction to the Example" in Chapter 1. This section provides definitions of SPSS variables used in your Unit 3 assignment.

• Read Chapter 6, "Frequencies." This reading addresses the following topics: ◦ Frequencies. ◦ Bar charts. ◦ Histograms. ◦ Percentiles.

• Read Chapter 7, "Descriptive Statistics." This reading addresses the following topics: ◦ Statistical significance. ◦ The normal distribution. ◦ Mean, median, and mode. ◦ Variance and standard deviation, skewness, and kurtosis. ◦ Maximum, minimum, range, and sum. ◦ Standard error.

Unit 3 Discussion 1 - Data Screening For this discussion, identify the goals of data screening. Then discuss how you can identify and remedy the following:

• Errors in data entry. • Outliers.

• Missing data.