Power analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required sample size for ...

The following statements create a SAS data set named BATTERY, which contains the number of alkaline batteries per lot failing an acceptance test. The number of batteries tested in each lot varies but ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. Erika Rasure is globally-recognized as a leading consumer economics ...

A method is described for estimating and collecting the sample size needed to estimate the mean of a process (with a specified level of statistical precision) in a simulation experiment. Steps are ...

Hi, I hope this is the best forum for this question and that someone can enlighten me with a clear answer. I work in a head office of a bank. One of my responsibilities is Quality Checking the work of ...

RBR’s lead story today (6/30) has Arbitron defending its sample size. That’s a story we’ve heard for years. For most of my career, Arbitron defended ratings produced by the diary method. They used ...