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Determination of Sample Size A Review of Statistical Theory

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1 Determination of Sample Size A Review of Statistical Theory
Business Research Methods 9e Zikmund Babin Carr Griffin Determination of Sample Size A Review of Statistical Theory Chapter 25 Communicating Research Results: Report Generation, Oral Presentation, and Follow-Up

2 Discuss the research report from the perspective of the communications process
Define the parts of a research report following a standard format Explain how to use tables for presenting numerical information Summarize how to select and use the types of research charts Describe how to give an effective oral presentation Discuss the importance of Internet reporting and research follow-up

3 Communication Process
The process by which one person or source sends a message to an audience or receiver and then receives feedback about the message. Elements that Influence Successful Communication Communicator Message Medium Audience Encoding Decoding Response Feedback

4 EXHIBIT 25.1 The Communication Process

5 EXHIBIT 25.2 Communication Occurs in a Common Field of Experience

6 What is a Business Research Report?
An oral presentation or written statement of research results, strategic recommendations, and/or other conclusions to a specific audience. Directed to the client or management who initiated the research. Usually supported by a formal presentation delivered in person or via the Internet.

7 EXHIBIT 25.3 Report Format

8 The Parts of the Report Title page should state:
The title of the report The title should give a brief but complete indication of the purpose of the research project. Addresses and titles of the preparer and recipient may also be included. For whom the report was prepared By whom it was prepared Date of release or presentation

9 The Parts of the Report (cont’d)
Letter of Transmittal Releases or delivers the report to the recipient in relatively formal and very formal reports. It serves to establish some relationship between the reader and the writer. Letter of Authorization ( Letter of Acceptance) The letter of authorization is a letter to the researcher that approves the project, details who has responsibility for it, and describes resources available to support it. Letter of Acceptance (or memo of acceptance) acknowledges the assignment.  This letter is rarely included in report Table of Contents Should list the divisions and subdivisions of the report with page references. Is based on the final outline of the report, but it should include only the first-level subdivisions.

10 EXHIBIT 25.5 Example of Transmittal Letter

11 The Parts of the Report (cont’d)
Summary Briefly explains why the research project was conducted, what aspects of the problem were considered, what the outcome was, and what should be done. Body Introduction section—discusses background information and the specific objectives of the research.

12 The Parts of the Report (cont’d)
Body (cont’d) Research methodology section —describes the structure and technical procedures of the project. It may be supplemented with an appendix or glossary of technical terms. Research design Sample design Data collection and fieldwork Analysis Results section— presents the findings of the project. It includes tables, charts, and an organized narrative.

13 The Parts of the Report (cont’d)
Body (cont’d) Conclusions and recommendations section— provides opinions based on the results and suggestions for action. The conclusions and recommendations should be presented in this section in more detail than in the summary, and the text should include justification as needed. Appendix Contains material that is too technical or too detailed to go in the body—includes materials of interest only to some readers or subsidiary materials not directly related to the objectives.

14 Basic Business Research Report Outline
Abstract Introduction Background Literature Review Hypotheses Research Methods Results Discussion Implications Limitations Future Research Conclusions References Appendices

15 Using Graphic Aids Effectively
Pictures or diagrams used to clarify complex points or emphasize a message. Should always be interpreted in the text. Tables Most useful for presenting numerical information, especially when several pieces of information have been gathered about each item discussed. Table number Title Stubheads and bannerheads Stubheads contains for the rows of the table Bannerheads (or boxheads) contain those for the columns. Footnotes and source notes Any explanations or qualifications for particular table entries or sections should be given in footnotes

16 EXHIBIT 25.6 Parts of a Table

17 EXHIBIT 25.7 Reporting Format for a Typical Cross- Tabulation

18 EXHIBIT 25.8 Reporting Format for a Typical Statistical Test

19 EXHIBIT 25. 9. Using a Stubhead Format to Include
EXHIBIT 25.9 Using a Stubhead Format to Include Several Cross-Tabulations in One Table

20 Using Graphic Aids Effectively
Charts Translate numerical information into visual form so that relationships may be easily grasped. Chart elements Figure number Title Explanatory legends Enough explanation should be put on the chart. Such as labels for axes, scale, numbers, and key to the various quantities being graphed. Source and footnotes Charts are subject to distortion.

21 EXHIBIT 25.10 Distortion by Alternating Scales
It shows how the same data can appear quite differently by altering the scale. (contracting (narrowing) or expanding vertical or horizontal scale tends to change the visual picture)

22 EXHIBIT 25.11 Distortion from Changing Vertical Scale
Another common way of introducing distortion is to have the vertical scae start at some value lager than zero or not reflect the entire range of he scale. It shows how almost no difference can be detected when the vertical axis includes the entire scale range (from1 to 10) However, a very small difference can appear large if the vertical scale is restricted.

23 Using Graphic Aids Effectively (cont’d)
Pie Charts Show the composition of some total quantity at a particular time. Each angle, or “slice,” is proportional to its percentage of the whole.

24 EXHIBIT 25.12 A Simple Pie Chart

25 EXHIBIT Pie Charts

26 Using Charts Effectively (cont’d)
Line Graphs Show the relationship of one variable to another. The dependent variable generally is shown on the vertical axis, and the independent variable on the horizontal axis. Simple line graph Multiple-line graph Stratum chart

27 EXHIBIT 25.14 Simple Line Graph

28 EXHIBIT 25.15 Multiple-Line Graph

29 EXHIBIT Stratum Chart

30 Using Charts Effectively (cont’d)
Bar Charts Show changes in the value of a dependent variable (plotted on the vertical axis) at discrete intervals of the independent variable (on the horizontal axis). Types: Subdivided-bar chart Multiple-bar chart

31 EXHIBIT 25.17 Simple Bar Chart

32 EXHIBIT 25.18 Subdivided Bar Chart

33 EXHIBIT 25.19 Multiple-Bar Chart

34 The Oral Presentation Oral Presentation
A spoken summary of the major findings, conclusions, and recommendations, given to clients or line managers to provide them with the opportunity to clarify any ambiguous issues by asking questions. Keys to effective presentation: Preparation (rehearsal) Adapting to the audience Not lecturing or reading to the audience Use graphic aids effectively Speaking effectively and convincingly

35 Reports on the Internet or Intranet
An easy way to share data is to make executive summaries and reports available on a company intranet. Companies can use information technology on the Internet to: Design questionnaires Administer surveys Analyze data Share the results Many companies offer fully Web-based research management systems.

36 The Research Follow-Up
Recontacting decision makers and/or clients after they have had a chance to read over a research report in order to determine whether additional information or clarification is necessary.


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