Random sampling is a probability sampling technique, is a method of choosing a sample of observations from a population to make assumptions about the population. Visit BYJU’S to learn different types of random sampling with its formula and examples.
Alternative mixed-effects model specification In this section, we present a hierarchical or multistage formulation of mixed-effects models where each level is described by its own set of equations. Consider a random-intercept model that we write here in general terms: yij = β0 + β1xij + uj...
The study critically assessed the conduct and profitability of the marketing of bush mango kernels (Irvingiaspp.) as a response to sustainable livelihood in Ondo State, Nigeria. Data were collected with the aid of a structured questionnaire, and a multistage sampling procedure was employed for the...
(3 percent), and designing campaigns aimed at encouraging the use of reusable packaging were considerably less widespread for the companies in the sampling surveyed (3 percent). These figures are perplexing for the author of this article since few organizations are developing practices that are ...
Land use transformation at the farm level is attributed to household decision-making, reflected by the behavior and activities of smallholder farmers. Unfortunately, household decision-making in local communities and its determinants are site-specific and hardly understood. This study uses multistage purpo...
of the medium. The subject of this analysis is an equation system consisting of diffraction patterns or spectral characteristics at each moment of the experiment. The extreme members (initial and final) and, in the case of multistage reactions, single intermediate members have a contrasting ...
Multistage and purposive sampling techniques were used in the study. Findings revealed that, on average, 62% of Bayelsa residents are exposed to radio reports on security issues within the state to a large extent. The qualitative data revealed similar findings. Fur...
The determination of the age-structure of Pacific herring (Clupea harengus pallasi) is approached as a multistage subsampling problem. Optimum allocation of sampling resources is obtained by minimizing the product of total cost and total variance. Optimal survey designs are analyzed for a variety of...
sustainability Article How Physical Environment Impacts Visitors' Behavior in Learning-Based Tourism—The Example of Technology Museum Heng Zhang 1,* , Po-Chien Chang 2 and Ming-Fong Tsai 1 1 Department of Architecture, National Cheng Kung University, No. 1, University Road, Tainan City 70101, ...
Multistage geological movements have led to the complex tectonics in the area [25,26,27]. The fracture structure can be divided into EW, NE, NW, and SN groups based on the strikes. The strike directions of the major faults are EW and NE, and NW strikes are also fairly common. The EW...