Population & Sampling
The goal of this presentation is to learn about sampling methods and determine the population sample representativeness, distribution, size and probability of sample mean to fall within the population interval.
Populations are used when your research question requires, or when you have access to, data from every member of the population. Usually, it is only straightforward to collect data from a whole population when it is small, accessible and cooperative. A population is the entire group that you want to draw conclusions about. A sample is the specific group that you will collect data from. The size of the sample is always less than the total size of the population. In research, a population doesn’t always refer to people. It can mean a group containing elements of anything you want to study, such as objects, events, organizations, countries, species, organisms, etc.
1:02 Population and Samples
2:06 Sampling Methods
4:30 Sample means for Representativeness
6:25 Sample Size and Error
12:39 Standard Deviation
16:56 Confindence Interval
19:15 t-distriution or t-test
20:23 Takeaway
En esta página del sitio puede ver el video en línea Population & Sampling de Duración hora minuto segunda en buena calidad , que subió el usuario Shady Attia 31 julio 2024, comparta el enlace con amigos y conocidos, en youtube este video ya ha sido visto 532 veces y le gustó 14 a los espectadores. Disfruta viendo!
