provided in a control system is to allow manual override of remote installations, either by a serial communication. link, modem, radio or other type of interface. In these installation the field device may be manually controlled until a. problem is corrected or until maintenance personnel can visit the site.
â¢ Doctors want to know how much hearing damage results from loud music. â¢ Teachers want to know whether or not listening to classical music helps students perform better on tests. Statistical investigations are used every day for a variety of reasons.
Statistical analysis can be broken down into five discrete steps, as follows: 1  Describe the nature of the data to be analyzed. 2  Explore the relation of the data to the underlying population.  Create a model to summarize understanding of how the data relates to the underlying population.