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Descriptive and Inferential Statistics: Consulting Firms

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1. Differentiating Descriptive and Inferential Statistics

Resource: Iwamoto.Crews.Coe Virtual Organization portal

Access the ICC.zip file and select the Iwamoto.Crews.Coe consulting firm. Various companies have hired the firm to handle matters of organizational development, professional growth, and marketing. Go to the Iwamoto.Crews.Coe intranet site and review the following business problems:

o Organizational Development
Benedek Medical Technologies, Inc. - Knowledge Test Design
Haynes Medical Distribution - Employee Retention
Riordan Manufacturing - Leadership Traits

o Professional Growth
Loehr Equipment Co. - E-Learning Study

Review the information provided in the description of each business problem and identify which of the problems an Industrial / Organizational Psychologist would want to use descriptive statistics and which of the problems he/she would want to use inferential statistics.

Provide a paper that discusses the following:

o How descriptive statistics differ from inferential statistics and when it is appropriate to use each
o Key similarities and differences among the four business problems and how these similarities and differences influenced your decisions regarding the use of descriptive and inferential statistics

Submit the paper as a Microsoft Word attachment to your Individual forum.

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o How descriptive statistics differ from inferential statistics and when it is appropriate to use each

Descriptive statistics are numbers that are used to consolidate a large amount of information. They provide simple summaries about the sample and the measures. Any average, for example, is a descriptive statistic. So, batting averages, average daily rainfall, or average daily temperature are good examples of descriptive statistics. On the other hand, inferential statistics are used when we want to draw conclusions. For example, when we want to determine if some treatment is better than another, or if there are differences in how two groups perform. A simple but good book definition is using samples to draw inferences about populations.

Descriptive statistics are typically distinguished from inferential statistics. With descriptive statistics you are simply describing what is or what the data shows. With inferential statistics, you are trying to reach conclusions that extend beyond the immediate data alone. For instance, we use inferential statistics to try to infer from the sample data what the population might think. Or, we use inferential statistics to make judgments of the probability that an observed difference between groups is a dependable one or one that might have happened by chance in this study. Thus, we use inferential ...

Solution Summary

Descriptive and inferential statics for consulting firms are examined.

See Also This Related BrainMass Solution

Statistical Choices Worksheet and SPSS or Excel Analysis

1 Assignment: Statistical Choices Worksheet

â?¢ Resources: Statistical Choices Worksheet & Figures 39.1 and 39.2 zip file

â?¢ Complete the Statistical Choices Worksheet to determine the correct descriptive and inferential statistics to use. If there is missing information that you need in order to make a choice, state the assumptions your choices are based upon. Refer to Figures 39.1 and 39.2 in the zip file.

2. Assignment: SPSS or Excel Analysis

â?¢ Resources: Pre-Post Test Score Data Set & Sample Results Report attached zip file

â?¢ Review the Sample Results Report.

â?¢ Access the Pre-Post Test Score Data Set. This is the data for Study #2 introduced in the Statistical Choices worksheet in the zip file.

â?¢ Analyze the data using SPSS or Excel based on the purpose of the study.

â?¢ Copy and paste the results into a Microsoft® Word document.

â?¢ Prepare a 350- to 700-word report presenting your results.

o Include the most appropriate descriptive displays (tables and/or figures) and statistics to describe the collected data and to determine the relationship between the variables.

o Leverage the Sample Results Report and ensure your paper is formatted in correct APA style.

â?¢ Submit the SPSS or Excel results and the report

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