Two articles were based off individual blind
taste tests of Pepsi and Coca-cola.
They wanted to see if people base their
consumption off taste or how well they can
relate to the product.
How presentation or commercials alter your
I will prepare a hypothesis test answering
whether half of the individuals prefer Pepsi
Coke or Pepsi? In Fact it’s all in the mind
by: Mark Henderson
This article shows how taste is as much a
mental thing as it is a taste-bud thing.
People have clear preferences when it comes to
Pepsi or Coke, but when it’s a “blind” test
situation, the results are different.
Brain-scanning technology shows how easily
cultural influences can affect perceptions,
rather the senses.
The test consisted of 67 volunteers who were
blindly tested while having their brains
Coca-cola is doing a better job of appealing to
Samuel McClure, who led the research at
Baylor College said “Coca-Cola and Pepsi are
nearly identical in chemical composition, yet
humans routinely display a strong subjective
preference for one or another.”
Coke vs. Pepsi: The Taste Test They Don't
Want You to Know About. By: Andy
goldsmith, VP creative and brand strategy,
American cancer society.
Coke was preferred by 75% to 25% during the
straight test, Coke is more related to memory &
cognition. Pepsi was not.
The brain studies suggest that Coke’s iconic
brand and stronger cultural connection may be
the difference in preference. And preference is
linked not just to taste.
Through the brain scanning it was discovered
that Cultural cues an imagery that Coke has
created can indeed have a bias on preference.
One man said after 16 years of drinking strictly
diet coke he said he would definitely be able to
tell the difference in a taste test, but failed
However, one girl who doesn’t drink soda at
all deciphered the difference between the two
in the 2 out of 3 test.
My data file compared Coke to Pepsi on
preference with a total of 635 individuals
participating in the study.
There was 446 females and 189 males.
Interesting ratio of 2.4 females to each
NULL: p <= 50%
More then half do
not prefer pepsi
ALTERNATIVE: p > 50%
More then half do
one-tailed or two-tailed? 1
obs > critical? yes
p-value < a-level? yes
Accept the Null Statement : More
then half do not prefer Pepsi.
Based off this study alone I would make a
recommendation to both Pepsi and Coca-Cola.
Pepsi- They should revise their overall
advertisement and display strategies. This
study shows that people clearly connect better
with the coca-cola image.
Coca-Cola – Continue on the same path to
success. They have won a blind taste test
against their rivals, and have a better
connection cognitively with their customers.
This study has clearly shown how people do
make consumption decisions based off social
perceptions or design rather than on taste
It is interesting that many soda drinkers
struggled when it came down to making a
decision on their favorite brand.
Over the years people can recall a fond
memory of a coke commercial over a Pepsi
More companies may want to take a page out
of Coke’s book, and vamp up their advertising
and image. It has been shown that on those two
factors alone, you can increase sales.
It is more than likely we all are effected the
same way by decisions like these, rather than
on taste alone.