Determining Sample Size in Applied Biostatistics

APPLIED
BIOSTATISTICS
NAME OF THE STUDENT
NAME OF THE UNIVERSITY

Determining Sample Size
 The sample size determination is basically the
act for choosing the numbers of replicates or
observations for including in a statistical sample.
 The sample size is one of the most important
features of any of the empirical studies in that
the goal is for making the inferences that are
about a population from a sample (Wolf et al.,
2013).

Sampling Techniques:
 Purposive Sampling: In this technique, the units of
the sampling can be selected according to the
purpose.
 Random Sampling: In this technique, each of the
units that are included in the sample, will be having
several pre-assigned chances of the inclusion into
the sample.
 Simple Random Sampling: This method provides the
better and unbiased estimate of the parameters,
whether the population is homogeneous.

Example