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These charts should have the y-axis start at zero. As they are now, I have to convert the bars into numbers, then mentally compare the numbers, which defeats the point of charting them graphically.

Though I guess I can compare the confidence intervals visually :-P

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Whenever I see y axes not start from zero on a marketing slide or blog alarm bells go off in my head.

Tbf, I think for this blog the narrower range does help the first chart as you can 1) easily compare bounds 2) on the full scale they would be nearly at the same spot.

Author here. If I were to do it again I would pick a different visualization. The intent was not to "lie" with statistics as other commenters here seem to think, it was to fit the data side by side and have it be reasonably visible.

Lots of room for improvement next time I think.

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