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Back to 10.1 Two Population Means with Unknown Standard Deviations

10.1 Exercise 33

Avg difficulty 2.5


Use the following information to answer the next three exercises: A study is done to determine which of two soft drinks has more sugar. There are 13 cans of Beverage A in a sample and six cans of Beverage B. The mean amount of sugar in Beverage A is 36 grams with a standard deviation of 0.6 grams. The mean amount of sugar in Beverage B is 38 grams with a standard deviation of 0.8 grams. The researchers believe that Beverage B has more sugar than Beverage A, on average. Both populations have normal distributions.

What is the random variable?

OpenStax Statistics, 10.1 Two Population Means with Unknown Standard Deviations, exercise 33

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