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	Program/Project Management Administration Services
	Establishing or Improving Project Management Office Functions

     Surveys - Knowing more about an Unknown Population

Improve Your Project Management by Knowing More about an Unknown Population.

Did you every wonder about TV news surveys when the commentator
announces, “Here are the results of our national survey, but remember the survey is not scientific”? Did you ever wonder why anyone would want interesting but
un-reliable results? So what would make a survey scientific, and consequently, meaningful and reliable? The answer lies in the methods and tools that answer the following questions:

• How many people to sample?
• How to select the sample?
• What questions to ask and how many?
• How to best order and design the question?
• How to prevent survey error?
• What will be the possible sources of errors?
• How to achieve a desired level of confidence?
• How to interpret the results?
• When is a non-conclusion a wise conclusion?
• How to display results in a meaningful manner?

Start-off with confidence, use a statistically based program to determine how many returned surveys are needed to achieve your desired level of results.

NUMBER OF SURVEYS NEEDED TO ESTIMATE A CHARACTERISTIC OF A POPULATION
No. of Surveys Returned	Margin of +/- Error %	Desired % Confidence .60 to .999	Size of Population N(if infinite put 1,000,000)
1000	0%	90%	1000
871	1%	90%	1000
629	2%	90%	1000
429	3%	90%	1000
297	4%	90%	1000
213	5%	90%	1000
158	6%	90%	1000
121	7%	90%	1000
96	8%	90%	1000
77	9%	90%	1000
63	10%	90%	1000

Then create an attractive survey and display the results in a meaningful manner.

Services are provided by a one-day workshop or by on–site consulting.

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