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VEN 125 FINAL EXAM (2024 QUESTIONS AND ANSWERS)
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VEN 125 FINAL EXAM (2024 QUESTIONS AND ANSWERS)
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VEN 125 FINAL EXAM (2024QUESTIONS AND ANSWERS)
Metameric match - answer objects with different
spectral distributions look alike under one light
source but different under another
Mesopic vision - answer occurs at dawn or dusk
and involves both rods and cones
5 tastes - answer sweet, sour, salty, bitter, umami
Supertasters - answer have more papillae on the
tongue, more taste buds, and more trigeminal
nerve endings
more sensitive to PTC & PROP, bitter, sweet, and
salty
30 papillae sq cm vs 5
Type I Error - answer Alpha
Falsely reject Ho (false positive)
Type II Error - answer Beta
Falsely accept Ho (false negative)
,Paired directional - answer Picking which sample
is ____ (saltier, sweeter, etc.)
p=.5 (one-tailed)
2 serving orders
Triangle - answer Picking the odd sample.
p=0.33 (one-tailed)
6 serving orders
Duo-Trio - answer Pick which is the same to a
reference.
p= 0.5 (one-tailed)
Single reference = 2 serving orders
2 out of 5 test - answer 3 cleaned and 2 spiked
P= 0.1
very fatiguing with wine
p = Probability that results could have occurred by
chance alone
1‐p = Probability that a real difference was
perceptible
, paired preference test - answer which do you
prefer? (consumer test)
p=0.5 (2-tailed test)
Rossler tables
Types of sensory evaluation - answer Analytical
sensory evaluation-Interested in the WINE and its
attributes
Consumer sensory evaluation-Interested in
CONSUMERS reactions to the wine
Power - answer 1-beta
Probability of finding a difference (if one exists)-
Depends on alpha, # of judgements, size of the
difference between the samples, directionality
(one tailed has more power)
Z-test - answer Z=(X-np)-0.5/sqrt(npq)
n= # responses
p = probability of guessing right
q = 1-p
Duo‐trio test for new blend versus old - answer
Results: p=0.059
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