CoStar Would Like to Test If the Vacancy Rate for "Warehouse

question 6

Multiple Choice

CoStar would like to test if the vacancy rate for "warehouse" stores is more than 8%. A random sample of 85 warehouse stores was selected and the number of vacant stores was counted. Assume that the true population proportion of vacant warehouse stores is 0.125. Using α = 0.05, beta equals _______.

• A)0.7188
• B)0.5557
• C)0.3627
• D)0.4091

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