Answers are grounded in this paper and cite their sources.
The calculation of the upper and lower quartile values of a data set in an elementary statistics course is done in at least a dozen different ways, depending on the text or computer/calculator package being used (such as SAS, JMP, MINITAB, Excel, and the TI-83 Plus). In this paper, we examine the various methods and offer a suggestion for a new method which is both statistically sound and easy to apply.
No takes yet. Share an insight, caveat, or question.
Eric Langford (2006) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: