logo

Methods of Sample Size Determination in Biostatistics

10 Pages629 Words80 Views
   

Added on  2023-04-20

About This Document

This presentation provides an overview of the methods of sample size determination in biostatistics. It explains the concept of point estimate, standard error, confidence level, and margin of error. The presentation also discusses the advantages and limitations of small and large sample sizes. References for further reading are provided.

Methods of Sample Size Determination in Biostatistics

   Added on 2023-04-20

ShareRelated Documents
Biostatistics
By (Name of Student)
Methods of Sample Size Determination in Biostatistics_1
Definitions
Point Estimate: a specific value assigned to a parameter of
a populationon the basis of sampling statistics
Standard Error: The standard error is the approximate
standard deviation of a statistical sample population. The
standard error is a statistical term that measures the
accuracy with which a sample represents a population
Confidence level:the probability that the value of a
parameter falls within a specified range of values.
Margin or error: The margin of error is a statistic
expressing the amount of random sampling error in a
survey's results
Methods of Sample Size Determination in Biostatistics_2
Methods of Sample Size Determination
Sample size calculation is concerned with how
much data we require to make a correct decision on
particular research. If we have more data, then our
decision will be more accurate and there will be less
error of the parameter estimate. This doesn’t
necessarily mean that more is always best in sample
size calculation. A statistician with expertise in
sample size calculation will need to apply
statistical techniques and formulas in order to find
the correct sample size calculation accurately.
Methods of Sample Size Determination in Biostatistics_3

End of preview

Want to access all the pages? Upload your documents or become a member.

Related Documents
Statistics Questions and Answers 2022
|13
|2647
|24

Cochran (1963) Sample Size Formula History
|13
|944
|315

Determining Sample Size in Applied Biostatistics
|11
|681
|355

Q1 Sample Size Selection
|10
|2595
|95

Sample Size and Confidence Interval
|2
|599
|366

BUACC5931 Research and Statistical Methods for Business | Q&A
|9
|2709
|159