Choosing the proper sample size for an investigation is one of the crucial jobs required of a statistician. Regardless of whether the statistician is deciding the number of patients to select in a ...

Read the sections on power and sample size (pages 37-39 and page 85) in Carl Schwarz's notes, Chapter 6. Some basic ideas: The significance level of a test protects against incorrect rejection of the ...

Despite the popularity of the general linear mixed model for data analysis, power and sample size methods and software are not generally available for commonly used test statistics and reference ...

The probability that the null hypothesis will be rejected when it is actually true is called the false positive rate and is determined by the significance level of the test (called alpha which is ...

This is a preview. Log in through your library . Abstract On-going public health surveillance is essential to the detection and monitoring of epidemics. We present statistical methods for determining ...