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A school board official is deciding how to vote on a proposal to purchase new playground equipment. The official wants her vote to be consistent with the majority of her constituents (51%). She administers a survey to 80 randomly selected constituents and determines that 48 support the proposal.
a) What is the parameter? What is the statistics?
b) Based on the statistics from part a), does this school board official have enough evidence that the majority of her constituents support the proposal? Why?
c) Use the Four-Step-Procedure to perform a hypothesis test at alpha level of 0.10 to answer the question in part b).
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