Chi-Square Goodness-of-Fit Test

This video explains how to conduct a Goodness of Fit hypothesis test using an example.

00:00 Introduction
00:48 Null & Alternative hypotheses
01:15 Chi square distribution and df
01:42 Critical Value/Rejection Region
01:51 Test statistic
03:55 Example 1 Conclusion & P-value
04:50 No preference/difference example

[chpunii]

I got nothing from the three-hour class last week, but now I can understand everything in just 7 min. Thank you so much 😊

[ezennayabenneth]

Just seconds to your video, I have gotten what I need
Thanks

[mrnobody]

Thank you Mr Joshua, you sounds very humble and articulate professor wish i had a chance to be your student

[alesiar]

Saved my dissertation! Thank you so much for this astonding video!

[whimsicalkins]

amazing video... amazing visuals...amazing content.. keep going.

[tom]

Got right on a similar question on my exam thank to you.

[abel.negatu]

what a leacture short precise and accurate

[minxkitty]

Thank you so much you were such a big help!

[phuonganhnguyen]

easy to understand. thank you so much ❤

[loislovescheese]

what if you had 3 replicates for each variable (say i have variables a, b, c, d and 3 replicate values for each (eg variable a has values 0.1, 0.2, 0.3) can I do the chi squared test on the 4 variables? Do I have to find the mean of each variable then do the chi squared test? or is there a better test for that? Thanks!

[princeisabel]

I pray I get an answer when it comes to rounding up .0584 doesn't sum to 1.6315 so why did we also pick that

[jahansaid]

Rejection region is bigger than 7.815 but the value we got is 1.6315 which is smaller than the rejection region, therefore the distribution should be Valid and it should pass the test? I don't why you said it doesn't pass the test ?

[kiki_bert]

the writing disturb when you are reading the table

[DucusinAlexisP]

The expected value is only 25% how does it become 35