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Basic Question 0 of 2

A hypothesis test is constructed at the 5% level of significance where the population standard deviation is unknown. A random sample of size n = 18 yields a sample mean of 67 and a sample standard deviation of 6. The critical value for H0: μ < 65 is ______.

A. -1.740
B. -1.645
C. 1.740
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User Contributed Comments 1

User Comment
irapp92 This would be a good test q.. no need to include a table as we should be able to conclude that the test stat is positive and there is only 1 positive answer
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I just wanted to share the good news that I passed CFA Level I!!! Thank you for your help - I think the online question bank helped cut the clutter and made a positive difference.
Edward Liu

Edward Liu

Learning Outcome Statements

construct hypothesis tests and determine their statistical significance, the associated Type I and Type II errors, and power of the test given a significance level

CFA® 2026 Level I Curriculum, Volume 1, Module 8.