- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 8. Hypothesis Testing
- Subject 11. Tests Concerning the Equality of Two Variances (F-Test)
CFA Practice Question
The calculated F statistic of a two-tailed test is less than the test statistic. What conclusion will the researcher draw from this result?
B. The data does not provide sufficient evidence that there is a difference in the population variances.
C. The researcher is unable to draw any conclusions about the data from this test.
A. The data provides sufficient evidence that there is a difference in the population variances with 90% confidence.
B. The data does not provide sufficient evidence that there is a difference in the population variances.
C. The researcher is unable to draw any conclusions about the data from this test.
Correct Answer: B
User Contributed Comments 5
| User | Comment |
|---|---|
| robkaz | That is true for a 2-tailed test but not necessarily true for a 1-tailed test. |
| surob | I think it doesn't matter whether it is one tailed or 2 tailed. What matters here is that calculated F statistic is less than test statistic. |
| tom1980 | how about the null hypothesis you make ? |
| TheHTrader | Is the calculated F statistic = critical value (by looking up the table of f-distribution? I am a little confused here. |
| jpducros | For a F-Statistic, there is only a one-tail test possible, the right tail. |