A business knows that of its customers are less than 25 years old. The business wants to increase this percentage, so they create a marketing campaign that targets this age group. They plan on taking a sample of customers after the marketing campaign is complete to test if the proportion of customers in that age group has significantly increased.
Let represent the proportion of this business's customers who are less than 25 years old after the marketing campaign.
Which of the following is an appropriate set of hypotheses for their significance test?
Choose 1 answer:
(A)
(B)
(C)
(D)
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