Annual survey of computer crimes. The Computer Security Institute (CSI) conducts an annual survey of computer crime at U.S. businesses. CSI sends survey questionnaires to computer security personnel at all U.S. corporations and government agencies. The latest CSI survey was sent by post or email to 5,412 firms, and 351 organizations responded.

Forty-one percent of the respondents admitted unauthorized use of computer systems at their firms during the year. (CSI Computer Crime and Security Survey, 2010/2011.)

a. Identify the population of interest to CSI.

b. Identify the data collection method used by CSI. Are there any potential biases in the method used?

c. Describe the variable measured in the CSI survey. Is it quantitative or qualitative?

d. What inference can be made from the study result?