Tests of a single variance (for the CFA Level 1 exam)

Tests of a single variance (for the CFA Level 1 exam) provides a walkthrough example of the chi-squared distribution being applied in hypothesis testing.
This video explores topics covered in Lesson 3, Learning Module 8 of the Quantitative Methods section of the 2024 CFA Level 1 Curriculum.

[@berkaymurat2647]

Hello, great video. Do we have to know each formula for hypothesis testing ?

[@letmeexplaincfa]

Unfortunately yes. The Learning outcome statement for this section states “construct hypothesis tests …” I would nevertheless just learn a few, the ones which you find easiest and for others, just know which distribution (t, cho-squared, F) is applicable. That’s what I did when I took my exam many years ago😜

[@berkaymurat2647]

@@letmeexplaincfa 😅 okay thank you so much for the answer!

[@roytang2098]

Hi, is there a way to tell when we should use the student t-distrubtion over the chi-squared distribution? or will questions specify which test statistic we should use?

[@anshkhakhkhar1256]

How you get the membership

[@letmeexplaincfa]

No, you should know which distribution to use for the relevant hypothesis test.

[@letmeexplaincfa]

Please look for the Join button on the channel homepage when viewing from a computer (rather than a phone)

[@tsholofelomaretela]

How would the question be phrased differently for a one-tailed test to be used?

[@letmeexplaincfa]

Test if standard deviation is higher than …

[@marting1554]

hello! will i get access to all readings for level 1 if i'm a member? what i mean is do you provide for complete level 1 curriculum?

[@letmeexplaincfa]

Please visit www.letmeexplain.eu for details on topics covered and upload schedule.

[@usarimalishah7357]

I search for your channel on chrome using my laptop but it doesn’t show join button .. how to join for members only video?

[@letmeexplaincfa]

Please check if your country is on this list: support.google.com/youtube/answer/6307365?hl=en Unfortunately, channel memberships are not available in all countries (KZbin policy)😔

[@terezarenatu8274]

@@letmeexplaincfa could you please consider adding your videos to other platforms such as Udemy, so that the content is accessible to those of us in countries excluded by the KZbin policy, please😭😭

[@anshkhakhkhar1256]

How to get membership?

[@letmeexplaincfa]

Please look for the Join button on a computer (it typically does not show on a phone).