Here are the Five-Number Summaries and box plots for each brand:
The box plots indicate that the two sets of counts are very similar. The location indicators are all about the same: The Mins and Q1s are exactly the same, and the Meds, Q3s, and Maxes differ by 0.5, 1, and 1, respectively, which are not large differences relative to the magnitudes of the numbers we are comparing.
The degree of variation is similar for the two brands. The ranges for Brands A and D are 16 and 15, respectively, and the IQRs are 5 and 6.
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