Optimal sampling system on populations of collectives

• US 7,805,278 B1
• Filed: 11/29/2006
• Issued: 09/28/2010
• Est. Priority Date: 11/29/2006
• Status: Expired due to Fees

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Rotondo, John
• Primary Examiner(s): Raymond; Edward
• Application Number:
  US11/564,497
• Time in Patent Office: 1,399 Days
• Field of Search: 702/179, 702182-185, 705/1
• US Class Current: 702/179
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Abstract

A system and method for generating and implementing a sampling plan on populations of collectives involve implementing a 2-stage sampling process. Based on an analysis of at least one of historical data and user-defined data, the system generates a sampling plan by determining the number n of collectives to sample from a population of collectives and an optimal number m of members to sample from each collective of the n sampled collectives. The system then in two stages randomly samples n collectives and then randomly samples m members from each randomly sampled collectives.

Claims

1. A method of generating a sampling plan on populations of collectives, the method causing a computing device to perform steps comprising:

based on an analysis of at least one of historical data and user-defined data, generating a sampling plan by determining an optimal number n of collectives to sample from a population of collectives and an optimal number m of members to sample from the n collectives;

randomly sampling n collectives from a population of collectives taking into account within-collective sampling error and between-collective sampling error; and

randomly sampling m members from each randomly sampled n collective.

2. The method of claim 1, wherein generating the sampling plan is based at least in part on user-defined statistical precision requirements.

3. The method of claim 1, wherein randomly sampling collectives and randomly sampling members are performed on each elementary design cell in an overall sampling design.

4. The method of claim 1, wherein the analysis of the randomly sampled collectives and members comprises applying statistical procedures comprising at least one of parameter estimation, hypothesis testing, and construction of confidence intervals.

5. The method of claim 1, further causing the computing device to perform steps comprising:

sampling the population of collectives by implementing the sampling plan.

6. The method of claim 5, wherein sampling the population comprises randomly sampling n collectives and m members of each n collectives.

7. The method of claim 1, further comprising generating the sampling plan based at least in part on historical data from at least one of previous surveys or pilot studies.

8. The method of claim 5, wherein sampling the population further comprises over-sampling to compensate for anticipated non-response rates.

9. The method of claim 1, wherein the user-defined data is at least one of an optimization criteria and statistical precision requirements.