d for dimethyl sulfide (DMS) in trained wine tasters is about 23 consumers may be less sensitive, however. A set of DMS odor to estimate the mean DMS odor threshold among all students, and vith 95% confidence. The standard deviation of the odor threshold r of wine. How large an SRS of untrained students do you need?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
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Sulfur compounds cause "off-odors" in wine, and winemakers want to know the odor threshold – the lowest concentration of a
compound that the human nose can detect. The odor threshold for dimethyl sulfide (DMS) in trained wine tasters is about 25
micrograms per liter of wine (µg/L). The untrained noses of consumers may be less sensitive, however. A set of DMS odor
threshold data for 10 untrained students was analyzed.
How sensitive are the untrained noses of students? You want to estimate the mean DMS odor threshold among all students, and
you would be satisfied to estimate the mean to within ±0.25 with 95% confidence. The standard deviation of the odor threshold
for untrained noses is known to be o = 8 micrograms per liter of wine. How large an SRS of untrained students do you need?
Give your answer rounded up to the nearest whole number.
n =
Incorrect
Transcribed Image Text:Sulfur compounds cause "off-odors" in wine, and winemakers want to know the odor threshold – the lowest concentration of a compound that the human nose can detect. The odor threshold for dimethyl sulfide (DMS) in trained wine tasters is about 25 micrograms per liter of wine (µg/L). The untrained noses of consumers may be less sensitive, however. A set of DMS odor threshold data for 10 untrained students was analyzed. How sensitive are the untrained noses of students? You want to estimate the mean DMS odor threshold among all students, and you would be satisfied to estimate the mean to within ±0.25 with 95% confidence. The standard deviation of the odor threshold for untrained noses is known to be o = 8 micrograms per liter of wine. How large an SRS of untrained students do you need? Give your answer rounded up to the nearest whole number. n = Incorrect
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