Annual Growth Rates for Individual Firms in the Toy Industry

question 109

Multiple Choice

Annual growth rates for individual firms in the toy industry tend to fluctuate dramatically, depending on consumers' tastes and current fads. Consider the following growth rates (in percent) for two companies in this industry, Hasbro and Mattel. Which of the following are the null and alternative hypotheses in order to determine if the variance of growth rates differs for the two firms?

• A) Η₀: / ≤ 1, Η_A: / > 1
• B) Η₀: / ≤ 1, Η_A: / > 1
• C) Η₀: / = 1, Η_A: / ≠ 1
• D) Η₀: / ≥ 1, Η_A: / < 1

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