Introduction
The company is interested in making one-sized shoes only and the data has been provided I will need to establish if the data is from a random variable before I proceed. It is important to observe the data for possible outliers which are clearly not from the sample for instance in a study to observe the number of youth between the ages of 15-25 engaged in smoking cigarettes a value of age maybe 81 will stand out as a data handling error. Someone may have been intending to enter 18 and in the rush they fail to realize that Continue reading...