Case Study: Thai Roong Ruang Sugar Group achieves fairer employee evaluations with Minitab Statistical Software

Thai Roong Ruang Sugar Group standardizes evaluations across 3 factories with Minitab

Thai Roong Ruang Sugar (TRR) Group, a leading sugar manufacturer in Thailand, faced a challenge in standardizing its employee performance review process. The company's human resources department needed to address inconsistent evaluation standards and potential bias among department managers across its factories, which were used to determine fair compensation. To investigate these significant differences in scores, TRR Group used Minitab Statistical Software.

Using Minitab, the HR team created histograms and boxplots to identify outlier scores and then used probability plots and hypothesis tests to confirm statistically significant differences in evaluations between departments and factories. This analysis provided the evidence needed to convince management to redesign the appraisal form. As a result, Minitab helped TRR Group establish standardized evaluation criteria, minimize potential bias, and confidently create a fair compensation and development plan based on reliable data.

Thai Roong Ruang Sugar (trr) Group