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.
It is a subjective method of research due to the researcher's interpretation of events. QUANTITATIVE METHOD: The aim is to classify features, to count them, and to construct statistics in an attempt to explain your observations. Your data will be shown in the form of numbers and/or statistics.