Which data point is an outlier? What may have happened to this batch of shoes? (2 points)
Based on the data provided, the data point "45" is an outlier as it is significantly higher than the rest of the data points.
This outlier may have occurred due to a manufacturing defect in this specific batch of shoes, resulting in a much higher production cost per shoe compared to the rest of the batch. Alternatively, it could also be possible that some high-cost material or process was used in the production of these specific shoes, leading to the outlier data point.