Statistics with computer analysis Project 1 Due February 3 2

Statistics with computer analysis Project 1 Due February 3, 2016 Read the article \"The Mind of a Con Man\" by Koos Brcukel in The New York Times published on April 26, 2013. The full text is available at http://www.nytimes.com/2013/04/28/magazine/digderik-stapels-audayious-acadgmie- fraud.html?emc=etal& r=0. Answer the following questions in a paragraph form (please limit yourself to 1-2 pages): Why it is important to properly select samples for any statistical study? What are the main criteria for a good reliable sample? What could happen if a sample is not carefully selected? Shortly describe the issue of data collection methods discussed in the article. What is wrong with this data collection method?

Solution

Main criteria for good reliable sampling are as follows:

1. Accuracy in sampling.

2. Precision in sampling.

3. Cost of sampling.

Cost should not overburden the sampling procedure.

4. Objectives of sampling

It has to be kept in mind that objectives of sampling is exhaustive of the sampling procedure.