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At a local Starbucks the other day the person working the register insisted the quarter(25c) I gave him was nickle(5c). Later when giving me 16c in change he ga
by amichal 9y ago
At a local Starbucks the other day the person working the register insisted the quarter(25c) I gave him was nickle(5c). Later when giving me 16c in change he gave me a quarter and a penny. At McDonalds the next day I was refunded for a 4.67 order that took too long with 5.50 cents. My experience matches the article. On a more serious note: We design software for use by finance experts. After user testing we’ve had to:
- remove error bars from charts because folks didn’t know what they were and found the concept confusing
- remove histograms (users didn’t know what they represented).
- remove “percentile” after no one could agree if 99th perctile was higher or lower then 1st
- eventually change rankings from “3rd” to “3rd highest score out of NN respondents”
- giardini 9y agoamichal says>After user testing we’ve had to:... - remove “percentile” after no one could agree if 99th percentile was higher or lower then 1st..." IIRC studies show that people comprehend natural frequencies (e.g., "10 of every 1000 women have cancer") more easily than they do percentages ("1% women have cancer").
- ApolloFortyNine 9y agoI actually have had the same thing happen at McDonalds, sometimes they seem to just not have a receipt for you so they give you whatever they feel like. It's always been more than I paid, but it is kinda like "you had one job." Supposedly if you pay with cash some cashiers pocket the cash and give you change from their own pocket, so maybe that's what happened here.
- pc86 9y agoI have a hard time seeing how you can be a "finance expert" and not know what an error bar or histogram is.