Chi-Square Test: Goodness of Fit

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  • čas přidán 10. 09. 2024
  • This lecture explains the Chi-Square Goodness of Fit Test. A simple 3 step rule is explained for solving each problem.
    Chi-Square Test: Goodness of Fit: • Chi-Square Test: Goodn...
    Chi-Square for Attributes: • Chi-Square Test: Indep...

Komentáře • 52

  • @drsonamsharma8041
    @drsonamsharma8041 Před rokem +2

    Very helpful in preparing my lecture. I saw a lot of vedios on this topic. But here i get the simple explanation of a confusing topic. Thank you so much sir🙏

  • @firdaousf4291
    @firdaousf4291 Před 8 měsíci +1

    Daamn your giving good exemples and different situations I was looking for videos for a loooong time and till I have exam tomorrow I find out your channel lol thankyou❤ ❤

  • @JustinMumbi-y3b
    @JustinMumbi-y3b Před 2 měsíci

    Your lessons are highly invaluable sir. Really appreciate

  • @JoshuaAjansonSule
    @JoshuaAjansonSule Před 4 měsíci

    thank you for explaining everything comprehensively

  • @Traveller019
    @Traveller019 Před 3 lety +9

    This is really good 👍.very well explained. It's been easy to understand I m preparing for my exams and your videos has helpexplained Stay blessed 👍🙏

  • @sumathin7705
    @sumathin7705 Před rokem +1

    Fabulous sir..thx a lot for ur clear explanation

  • @udaysinghvirdi7337
    @udaysinghvirdi7337 Před 3 měsíci

    sir in question 3 we make H(not) that dse not depend so why we conclude that it is same while we accpting the hypothesis please clear it

  • @vhukhudomathada7860
    @vhukhudomathada7860 Před 3 lety +1

    Sir what to do if you not given p to find E NOR GIVEN SEVERAL columns...only given a single column..

  • @prajjwalmajumder9652
    @prajjwalmajumder9652 Před 3 lety +2

    Why the chi square value in the table is being checked at 0.05 all the time?

    • @DrHarishGarg
      @DrHarishGarg  Před 3 lety +2

      By default , the level of significance is 5% i.e., 0.05... But you can change it to 0.01 i.e., 1% or others as per the convenience

  • @RakeshSingh-ek1hr
    @RakeshSingh-ek1hr Před 2 lety +1

    Very well explained sir
    Thank u so much

  • @sushmaelijala1592
    @sushmaelijala1592 Před 7 měsíci

    Hello sir,
    How you have decided to apply binomial distribution to 4 th problem in the video..

  • @shayanansari9450
    @shayanansari9450 Před 2 lety +1

    Very helpful thankuh sir

  • @DineshKumar-bu9hu
    @DineshKumar-bu9hu Před rokem

    thankyou sir for the videos. helped a lot for the exams

    • @DrHarishGarg
      @DrHarishGarg  Před rokem

      It's my pleasure.. I hope you can share with others too so that they also learn alot from my this and other videos..

  • @codewithab
    @codewithab Před rokem +1

    Outstanding explanation

  • @RAVI-zi1wn
    @RAVI-zi1wn Před 2 lety

    Sir , the curve of chi square should only on right side, because it is square of SNV means positive?

  • @shrawankumarpatel2148

    Thank you so much sir

  • @_sf_editz1870
    @_sf_editz1870 Před rokem

    sir , how to know whether the question is chisquare test or not ??

  • @harshvardhanpareek4103
    @harshvardhanpareek4103 Před 2 lety +1

    Amazing video sir 😍😍🤩🤩

    • @DrHarishGarg
      @DrHarishGarg  Před 2 lety +1

      Thanks a ton..
      Lecture on the RUN Test is uploaded ... Kindly watch

  • @AbdulftahAltwati
    @AbdulftahAltwati Před 2 lety

    Thank you so much

  • @rohitchandel.01
    @rohitchandel.01 Před rokem

    Sir why you use binomial equation in 4th question ??

  • @solvinglife6658
    @solvinglife6658 Před rokem +1

    Sir why we combine values less than 5?

  • @tejaspatil476
    @tejaspatil476 Před 3 lety +2

    Nice video sir

    • @DrHarishGarg
      @DrHarishGarg  Před 3 lety +1

      Many thanks ... Keep watching second video on Chi square test - Independence of attribute.

  • @bestojohnjoseph6962
    @bestojohnjoseph6962 Před 3 lety +1

    Sir can u please explain me more how the degrees of freedom in problem no. 5 is calculated... I am still confused😑... The rest all were really fantastic ❤️

  • @optimization9040
    @optimization9040 Před 3 lety +1

    What is the difference between the chi-square test and T test or they are the same? Sir

    • @DrHarishGarg
      @DrHarishGarg  Před 3 lety +2

      Chi-square test is based on frequency and it is distribution free (non-parametric test, means no need of population follow to be normal ), while t-test is used to check the average (mean) only for small samples (whose size is

    • @optimization9040
      @optimization9040 Před 3 lety

      @@DrHarishGarg Many thanks for your informative answer

  • @watchanimelol
    @watchanimelol Před rokem

    Sir what does it mean when in the question it is asked to "test the hypothesis ___" is this hypothesis H⁰ or H¹?

    • @DrHarishGarg
      @DrHarishGarg  Před rokem

      No dear... Actually, sometime it will be H0 and sometime it will be H1.... To know what is H0 and H1 easily... See my lecture... Its easy to learn..
      czcams.com/video/U1e8CqkSzLI/video.html

    • @watchanimelol
      @watchanimelol Před rokem

      @@DrHarishGarg thank you sir 🙏

    • @DrHarishGarg
      @DrHarishGarg  Před rokem

      My pleasure always .... Keep watching and share with other students too.

  • @kousalyasivakumaran4064
    @kousalyasivakumaran4064 Před 3 lety +2

    Sir what if the observed data is given in percentage without giving the total value of N
    Example:
    Red- 38%
    Blue- 42%
    Green- 20%
    What would be the O and E??
    Please help sir

    • @DrHarishGarg
      @DrHarishGarg  Před 3 lety +4

      Here O is 38%, 42%, 20% and N is sum of these, i.e., N = 100%
      You can also take O as 38, 42, 20 as % is common to all of them.
      Also you can take O as 0.38, 0.42, 0.20 etc. And N is 0.38+0.42+0.20=1
      Once you get O , now calculate E as per the statement conditions.

    • @kousalyasivakumaran4064
      @kousalyasivakumaran4064 Před 3 lety +1

      @@DrHarishGarg thank you so much sir

  • @shivable
    @shivable Před 2 lety

    Nice explanation

  • @UmerFarooq-zm6po
    @UmerFarooq-zm6po Před rokem

    22:58,
    Why 0.05 is chosen?

    • @DrHarishGarg
      @DrHarishGarg  Před rokem +1

      By default, it is 5% level of significance.

  • @abdulmatinhublikar3050
    @abdulmatinhublikar3050 Před 3 lety +1

    Sir please explain Matlab code for Firefly algorithm and social algorithm

    • @DrHarishGarg
      @DrHarishGarg  Před 3 lety

      Sure... Next video will be on these MATLAb Code

  • @shrawankumarpatel2148

    🙏🙏🙏🙏🙏

  • @watchanimelol
    @watchanimelol Před rokem

    Sir please cover contingency table 🙏

    • @DrHarishGarg
      @DrHarishGarg  Před rokem

      Already uploaded and available at my channel..... Check the playlist... Chi square test: Independence of attributes

  • @pradipkhatri8481
    @pradipkhatri8481 Před 3 lety

    Dear sir can you please explain Quantum Particle swamp optimization(QPSO).

    • @DrHarishGarg
      @DrHarishGarg  Před 3 lety +1

      Sure .... I will considered in the future task