CFA-Level-I試験無料問題集「CFA Institute CFA Level I Chartered Financial Analyst 認定」
A consumer group wants to prove that the average hospital costs are more than $931 per day. The group randomly samples 60 accounts and finds a sample mean of $950. The hypothesis test is at an a-level of 5% and assumes a oof $50. Which of the following is true?
正解:B
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