2021年CFA考试《Level Ⅰ》考试题库-CFA考试（Level Ⅰ）-Study Session 3 Quantitative Methods Application-
财会经济-CFA特许金融分析师
阅读理解-The appropriate null hypothesis for the described test is:
Use the following data to answer Questions 58 through 63. An analyst is conducting a hypothesis test to determine if the mean time spent on investment research is different from three hours per day. The test is performed at the 5% level of significance and uses a random sample of 64 portfolio managers, where the mean time spent on research is found to be 2.5 hours. The population standard deviation is 1.5 hours.
阅读理解
A.H0:μ=3 hours.
B.H0:μ≤3 hours.
C.H0:μ≥3 hours.
我个人认为这个应该是：A
解析：H0: μ = 3 hours.
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