Adaptive sample size and sampling intervals schemes have been widely used to improve the statistical efficiency of Hotelling T² control chart in detecting small changes when the quality of a product or a process can be characterised by the multivariate distribution of quality characteristics....

This study compares the robustness of conjoint analysis versus multiple linear regression when using orthogonal data. The explained variance (R²) by four independent variables was utilised to test the robustness of the regression analysis while Pearson's R and Kendall's tau were used for...

Machining operations are used for creating surfaces by cutting away unwanted materials from workpieces. These operations are highly constrained and non-linear in nature. As a result traditional techniques are not suitable for machining parameter optimisation. Turning and milling are the two most...

Organisations rely on data analytics to process vast quantities of consumer data to inform strategy and policy decisions. Descriptive analytics is commonly used to provide insight into past consumer behaviour. However, greater value can be achieved by predicting future consumer behaviour through...

Most processes involve more than one process/product output variable, multiple process input/regulatory variables, and a category of noise variables, which consists of factors not considered in the model, or those external to the process. Since output variables are not necessarily independent of...

Multivariate statistical analysis techniques including regression analysis compose a popular toolset for analysing survey data, but the techniques require a complete dataset with no missing values. Unfortunately, most survey datasets contain missing values. These missing values must be resolved...

When the manufacturing objective is process or product improvement, quality practitioners will frequently resort to one or more approaches within the broader class of response surface methodology. Several techniques, such as the dual response, robust parameter design, and desirability function...

This paper introduces a one-sided multivariate exponentially weighted moving average (MEWMA) chart for detecting an increase in a process mean. The control limits are based on the multivariate Poisson distribution and have applications for both industrial processes and public health data. The...

Tourist satisfaction refers to the emotional state of tourists after exposure to the opportunity or experience. Experience can be regarded as the individual's intention to create a situation whereby he gains satisfaction. As a result, a tourist's satisfaction is determined by factors or criteria...

This study aims to gain insight into criteria (detailed market study, business/financial analysis, business/financial analysis before promotion, resource allocation) that contribute to the success of new service development (NSD) ventures in sectors of tourism economy and focusing especially on...