Compare datasets in terms of mean, median, range, IQR and standard deviation, interpret the differences observed in the context of the data, and report the findings in a systematic and concise manner.

Two competing online retailers, RetailHub and ShopNow, each recorded the daily number of customer complaints received over a two-week period. RetailHub: \( 12, 15, 14, 18, 13, 16, 14, 15, 17, 14, 13, 16, 15, 14 \) ShopNow: \( 8, 22, 9, 24, 10, 21, 8, 23, 9, 22, 10, 24, 9, 21 \) Compare the two datasets by calculating the mean and range for each retailer, and interpret the difference in variability in the context of customer complaints.

A regional health service monitors the waiting times (in minutes) for patients at two emergency departments, Site A and Site B, over the same week. Compare the two datasets in terms of their measures of centre and spread, and interpret which site demonstrates more consistent service delivery.

Two manufacturing plants, Plant X and Plant Y, produce identical components. A quality control officer records the daily production output (in thousands of units) over a two-week period. The summary statistics are shown in the table below. Which statement correctly compares the two datasets?