Sulfur compounds cause "off odors" in wine, so 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 2525 micrograms per liter of wine (?g/L).(�g/L). The untrained noses of consumers may be less sensitive, however. The DMS odor thresholds for 1010 untrained students are given. DMS odor thresholds
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Sulfur compounds cause "off odors" in wine, so 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 2525 micrograms per liter of wine (?g/L).(�g/L). The untrained noses of consumers may be less sensitive, however. The DMS odor thresholds for 1010 untrained students are given.
DMS odor thresholds| 30 | 30 | 42 | 35 | 22 | 33 | 31 | 29 | 19 | 23 |
Assume that the standard deviation of the odor threshold for untrained noses is known to be ?=7 ?g/L.
Give a 95% confidence interval for the mean DMS odor threshold among all students. Use the four‑step process. Give your answer as an interval in the form (lower bound, upper bound). Give your numbers to two decimal places.
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