Vermont-Based Green Mountain Coffee Roasters Dominates the Market for Single-Serve

question 89

Multiple Choice

Vermont-based Green Mountain Coffee Roasters dominates the market for single-serve coffee in the United States,with its subsidiary Keurig accounting for approximately 70% of sales ("Rivals Try to Loosen Keurig's Grip on Single-Serve Coffee Market," Chicago Tribune,February 26,2011) .But Keurig's patent on K-cups,the plastic pods used to brew the coffee,is expected to expire in 2012,allowing other companies to better compete.Suppose a potential competitor has been conducting blind taste tests on its blend and finds that 47% of consumers strongly prefer its French Roast to that of Green Mountain Coffee Roasters.After tweaking its recipe,the competitor conducts a test with 144 tasters,of which 72 prefer its blend.The competitor claims that its new blend is preferred by more than 47% of consumers to Green Mountain Coffee Roasters' French Roast.Which of the following should be used to develop the null and alternative hypotheses to test this claim?

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Definitions:

Energy of Activation

The minimum amount of energy that reacting species must possess in order to undergo a specified chemical reaction.

Equilibrium

A state in which the forward and reverse reactions occur at equal rates in a chemical reaction, resulting in no net change in the concentration of reactants and products.

Dynamic Equilibrium

Dynamic equilibrium occurs when the rate of forward reaction equals the rate of the reverse reaction in a chemical system, resulting in the concentrations of reactants and products remaining constant over time.

Equilibrium Constant

A mathematical expression that relates the concentrations of reactants and products in a chemical reaction at equilibrium.