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An article gave the accompanying data on caffeine, in milligrams, per ounce for

ID: 3063261 • Letter: A

Question

An article gave the accompanying data on caffeine, in milligrams, per ounce for eight top-selling energy drinks and for 11 high-caffeine energy drinks. Top-Selling Energy Drinks 9.9 10.0 10.0 9.0 10.8 8.6 9.5 9.2 High-Caffeine Energy Drinks 21.0 25.0 15.0 21.5 35.9 15.0 33.2 11.9 16.3 31.4 30.0 Compute the standard deviation and interquartile range for the top-selling energy drinks. (Round your answers to two decimal places.) standard deviation interquartile range mg caffeine per ounce mg caffeine per ounce s. (Round your answers to two decimal places.) Compute the standard deviation and interquartile range for the high-caffeine energy drink standard deviation interquartile range mg caffeine per ounce mg caffeine per ounce Which of the two groups of energy drinks (top-selling or high-caffeine) is the most variable with respect to caffeine per ounce? the standard deviation for the top-selling energy drinks. The interquartile The standard deviation for the high-caffeine energy drinks is Select the interquartile range for the top selling energy drinks. This tells us that the high-caffeine drinks are Selec high-caffeine energy drinks is -Select with respect to caffeine per ounce

Explanation / Answer

Solution:-

Top - selling energy drinks : 9.9,10.0,10.0,9.0,10.8,8.6,9.5,9.2

High - caffeine energy drinks : 21.0,25.0,15.0,21.5,35.9,15.0,33.2,11.9,16.3,31.4,30.0

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Top-selling energy :

Standard deviation : 0.69 mg caffeine per ounce

interquartile range : 0.90 mg caffeine per ounce

high - caffeine energy drinks.

Standard deviation : 8.34 mg caffeine per ounce

interquartile range : 16.4 mg caffeine per ounce


=> The standard deviation for the high-caffeine energy drinks is greater than the standard deviation for the top-selling energy drinks.the interquartile range for the high-caffeine energy drinks is greater than the interquartile range for the top selling energy drinks.

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