How to Perform and Interpret Regression Analysis Essay

How to Perform and Interpret Regression Analysis - Essay Example The results of a statistical and probability analysis conducted using the database provided by a company indicate that; 1. Employee turnover ratio also depends on the gender of the staff. Female staff remained with the company for much longer (20.83% of the female population had worked in the company for over five years as against 12.50% of the male population). Similarly, studies relating to smoking to lung cancer are correlational (increasing number of lung cancer cases means an increasing number of smokers and vice-versa). Therefore, measurement of two variables and determining whether they are associated with each other is called correlational study. Causation: If an event of the first kind occurs, an event of the second kind will or must occur, and the first event is the 'cause' of the second event. This is called causation. A relation is called a causal relation if a change in one variable is not only correlated with but actually produces a change in another variable. For examp le, negligence on the part of a computer programmer may cause, malfunctioning of the inventory control programme. On the other hand in a correlation, two correlated variables might or might not result in a change in each other. In correlation, the changes are in general proportionate, but in Causation the changes may not be proportionate and measurable.