Hi, need to submit a 500 words essay on the topic Statistical models and probabilities.
For every project, a schedule is prepared prior to the commencement of the execution of the work. In order for the schedule to be rational, it is imperative that the time taken by similar activities in the past is reviewed. The activities are assigned durations based on that. However, owing to the emphasis on creativity and innovation in the present age, civil engineers are trying new ways and methods of executing the projects, so past record of duration of a certain activity may not always be there. PERT is a technique of assessing the duration of an activity that has never been executed in the past.
Like all other areas, civil engineering has also evolved through research. The conventional techniques for the quantitative and/or qualitative analysis of the data make use of statistical models and probabilities. The data is checked for normality through the measures of kurtosis and skewness. If the data passes the normality test, then parametric tests are applied to evaluate the data further. If the data does not pass the normality test, then nonparametric tests are applied for the further evaluation of the data.