PPT-Sampling and Occupancy Estimation

Krishna Pacifici Department of Applied Ecology NCSU January 10 2014 Designing studies Why what and how Why collect the data What type of data to collect How should the data be collected in the field and then analyzed. and Information Management. Training. 4 – 9 May 2014. Humanitarian profile. Methods of estimating . affcted. population. Methods. A total of five broad categories of population estimation methods have been identified. . MTH . 494. LECTURE-13. Ossam Chohan. Assistant Professor. CIIT Abbottabad. 2. STRATIFIED SAMPLING. 3. STRATIFIED SAMPLING. 1.. . Stratification. : The elements in the population are divided into layers/groups/ strata based on their values on one/several auxiliary variables. The strata must be non-overlapping and together constitute the whole population.. with . normal distributions are squared and summed. . Sampling distribution of. s. 2. The chi-square distribution results when independent variables with . normal . distributions are squared and summed. . Amber Spackman Jones. Utah Water Research Lab. Nancy Mesner. Watershed Science. Jeff Horsburgh. Utah Water Research Lab. Ron . Ryel. Wildland Resources. David Stevens. Utah Water Research Lab. Environmental processes can have fine scale.. MTH 494. Lecture-15. Ossam Chohan. Assistant Professor. CIIT Abbottabad. How to draw a Stratified Random Sample. First step is to clearly specify the strata.. Place each sampling unit of population in its appropriate stratum. . Estimation of SRAM Failure Rate Using . Probability Collectives. Fang Gong. Electrical Engineering Department, UCLA. http. ://www.ee.ucla.edu/~fang08. Collaborators: . Sina Basir-Kazeruni, Lara Dolecek, Lei He. MRIP Webinar. October 4, 2010. How Did We Get Here?. Marine Recreational Information . Program. Goal: . The MRIP goal is a nationwide system of surveys operating with consistent standards and sufficient flexibility to meet national, regional, and state needs, and to provide reliable information about recreational fishing in a timely manner to support effective and fair management. Graham Kalton. Westat. PHIA sampling workshops. This presentation provides a broad overview of the PHIA sampling and weighting issues.. The next two sampling workshop will go through components of these issues in greater detail:. MTH 494. Lecture-17. Ossam Chohan. Assistant Professor. CIIT Abbottabad. Estimation of a . Population Proportion. In our numerical example, we have been interested in estimating the average or the total number of hours per week spent watching television.. Presentation to HCBS Conference Arlington, VA September 18, 2014. Leslie Hendrickson. Hendrickson Development . Gain better understanding of factors affecting NF occupancy. Built two models and studied important zero-order correlations.. A new sampling method. Motivating example. Want to study the average amount of water used per person per month. How would you design a survey?. 2. A new sampling method. Consider the two strategies. Sample person by person. Key to in-class exercise are in . blue. 1. Jan 8, . 2016. AEC 501. Nathan J. . Hostetter. njhostet@ncsu.edu. Occupancy. Abundance often most interesting variable when analyzing a population. Occupancy – probability that a site is occupied. Patch Occupancy and Patch Dynamics Single species, Single Season Occupancy The Problem Primarily interested in the proportion of sites that are occupied or the probability a particular site is occupied Applied Statistics and Probability for Engineers. Sixth Edition. Douglas C. Montgomery George C. . Runger. Chapter 7 Title and Outline. 2. 7. Point Estimation of Parameters and Sampling Distributions.